GTA

All Springer/NP/PCP Air Gun Discussion General => European/Asian Air Gun Gates => Gamo & Spanish AirGun Gate => Topic started by: CharlieDaTuna on October 01, 2010, 12:05:43 AM

Title: REVISED 1/16/13: New GRT-IV replacement for Gamo plastic trigger
Post by: CharlieDaTuna on October 01, 2010, 12:05:43 AM
I receive e-mails and questions almost every day and the forum as well asking about a replacement trigger for the new Gamos but there has always been underlying problems with the concept.  ???

I am strongly considering developing a CNC program and tooling up to make a replacement trigger for the entire line of the late model Gamo rifles using the new trigger block and plastic triggers. ;) The problem is that it would not be a simple drop in like the GRT-III trigger. It’s just not possible. :(

Why am I bringing this up????    I would like to establish the interest, get your thoughts and to determine the acceptance to help me decide if I really want to invest my time and money in doing this. It does take time and money and I don’t want to waste either of them if nobody has an interest based on the information below. I’m not doing this so much for the money (you don’t get rich doing these things) although that is a good incentive, but more because the need is there and it’s good for the airgun enthusiasts.  ;D

The R&D has already under way and it does look feasible but there are a couple of drawbacks that do make me hesitate.  :-\ As with anything else that is made from the ground up, CNC programming, making the jigs, and tooling up is very costly as well as time consuming. The GRT-III development took a long time for it to pay for itself.

The one major draw back is that in order to install the GRT-4G, the trigger block must be removed from the gun. The GRT-4G can be installed in the springer version of Gamo without a spring compressor. To install the GRT-4G in an IGT Gamo does require a spring compressor. Once the trigger block is removed, the installation is pretty straight line and rather simple to do but does require a little mechanical ability and no special tools. 8)

It will come with step by step instructions and step by step trigger pics (in downloaded instructions as before) along with additional hardware that may be needed in addition to the trigger. The trigger as before will be pre-adjusted prior to shipping.

Another issue is that although there are many airgun enthusiasts out there, how many are mechanically inclined, willing to make a spring compressor and bold enough to start ripping an airgun apart??? Almost everyone that has taken a gun apart, especially a Gamo, knows that for the most part, they are very simple and easy to work on. ;D

That said, in addition, the new Gamo rifles can be vastly improved and because the trigger has been removed and there is now access to the internals, the installation instructions will be appended with a complete tune guide so the person can do a SuperTune while he has it opened up. The instructions will include what parts and lubes to order and where to order them from, how and where to lube and with what.

When finished, he should have a gun that is almost the gun that the older Gamo’s were when tuned. Keep in mind thought that they cannot be TurboTuned because of the internal design. 8)

That is it in a nut shell

I would appreciate as many comments and thoughts as possible from any and all of you that have any interest so please speak out if you would. And if you would rather not post your comment, then please e-mail me at [email protected] . A lot of my final decision will be based on the forum participation. :) :)

Finally…. If there are any late model Gamo trigger block assemblies from a trashed gun or even junk or unwanted guns with the trigger assembly in tact that is willing to part with it, I sure would like to have them for testing and parts for the R&D side of this project.  :D :D

Thank you all for your taking the time to read this and thanks in advance for your responses.

Bob….aka: CDT


This has been the second post on the GTA forum and never updated. I thought you might want to see how the future of the GRT-4G progressed since this original post back on Sept. 30, 2010.
???

In early October of 2010 we began working on the R&D for a new trigger design for the late model Gamo with the modular trigger block in earnest.  :-X We realized early on that it was going to be a far more complex CNC programming and manufacturing process than the GRT-III trigger and that the installation by the consumer could be an issue and something that would need to be overcome.  ??? ::)

After many weeks to trial and error, testing and many failures, we finally came up with a working prototype.  ;) I sent out several test triggers to different people including Gene to get some outside field testing results, comments, opinions and suggestions.  The results were that I received were very positive.  ;D  ;D

We made some very minor changes in the geometry, did some more testing and prepared to make the jigs and plates for production. That and the CNC programming is one of the more costly and time consuming parts of the final preparation before the manufacturing process can begin. No room for error there.  :'(

While we were working on the new trigger, we also experimented with the installation process and found that the new Gamo modular trigger design made it possible, with care, and preferably with the assistance of a second person, it was quite easy to disassemble and reassemble the gun without using a spring compressor.  ;) ;) But again, care needed to be taken and understanding that the spring was used and already set. However, using a new spring would be far more difficult and a spring compressor should be used.  :-\

In late December, a limited production run to test the market was under way and in mid-January, the new GRT-4G trigger was released. Keep in mind, our objective in providing a new trigger for the Gamo was not to get rich…lol… but rather to fulfill a need for those that own or would like to own a Gamo and also knowing it had the trigger issue.  :D  Unlike with the GRT-III trigger and being aware that it was going to be a limited market and the GRT-4G application would apply only to the new Gamos’ using the new plastic trigger module; we did not want to over commit ourselves. But it was for all intent and purposes, a “success” and the Gamo customers were highly satisfied with it and had nothing but positive comments regarding its performance.  ;D ;D

In March 2011 we did a second production that was a revised trigger with a little change in the geometry and eliminated the first stage adjustment screw and made it so that the first stage was set up to be as perfect in the geometry as it could get if using an adjustment and at the same time to prevent any possibility of accidentally overcoming the function of the safety switch which was a distinct possibility with the screw.

Our customer response has been fantastic and the GRT-4G is everything that the GRT-III of the past has been, just in a much narrower field of application. To those of you that have taken advantage of the GRT-4G trigger, thank you and thank you for your support.   ;) ;)

And so there you have the rest of the GRT-4G trigger story. ;) ;)

Charlie

Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: Addictedtoair on October 01, 2010, 02:10:02 AM
I'm 100% for the Late Model Gamo Series of weapons to have the option of having a trigger upgrade available. I feel a good trigger is the most "bang for the buck" upgrade that can be done to any weapon. Gamo's decision to go plastic seemed to be the end of one the most important items that is installed in any current tune, that being the GRT-III trigger. I personally feel strongly enough about this that although I don't currently need one, I would make a donation for the R&D of the new trigger! Thank you Bob for even being willing to think about helping out so many air gunners.

Thankfully and Respectfully Your's,
Brett H. Bishop
SSG,U.S.Army(RET)
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: RHINOTEX on October 01, 2010, 09:27:10 AM
The new Gamo trigger design has removed any possibility of purchase of an otherwise very good gun line.   I think that says it all.   Bob
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: oldpink on October 01, 2010, 09:40:18 AM
It's definitely an intriguing idea, but I wonder how much modification would be necessary to install it.
If it works well, I seriously believe that Gamo should send a big fat check to Bob for coming up with this to ensure future sales of their guns that would have otherwise dried up and blown away.
I'm not joking, either!
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: bradyman1 on October 01, 2010, 10:30:20 AM
You could also possible offer 2 kits. One with just the trigger and one with the other lubes etc. needed for the Super Tune. I think both kits would be good sellers.
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: CharlieDaTuna on October 01, 2010, 11:19:06 AM

Thanks addictedtoair but I'm not looking for any fund/money donations but rather just the parts that someone might have setting around.

As I see it at this point, there would be no modification needed for thstall the new trigger. There are some logistics that I need to work around, especially in one particular area but I do believe that I can overcome it. If not, it will squash everything. :( :(

You are probably right brandyman1 regarding two kits but I would not sell any kits for tuning, just the trigger kit.

There was a point in time that Gamo was sending me their trigger complaint customers, and still do occasionally, for the replacement GRT-III trigger. But one thing for sure.... they ain't gonna send me no check :D :D :D
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: ezman604 on October 01, 2010, 12:06:20 PM
Bob, are there any other AGs that this trigger might fit besides the Gamo line? I'd sure like to have an upgrade for PL1K, TF89 & Ruger Blackhawk. Just curious if any of them use a similar trigger assenbly. MANY thanks for your continued efforts in the sport!!!!
Happy Shooting!!!!
Dave
 8)
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: renowntwo on October 01, 2010, 12:09:28 PM
i know  i would like 2 have the trigger  because the plastic 1 stopped me from gettin the big cat in .22
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: CharlieDaTuna on October 01, 2010, 01:14:44 PM
The GRT-IV trigger will be designed around the new Gamo trigger block and will not work in anything else that I know of at this time.
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: Chortdraw on October 01, 2010, 01:16:48 PM
Stop buying Gamos for a while and have China put Bob on their payroll so he can teach them how to correct their problem. How much Yen do you need Bob??
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: shadow on October 01, 2010, 04:30:22 PM
It's hard for me to tell Bob to jump into it and design another trigger for the Gamo's and a Company that has lost it's way as far as listening to what the customer want's. Gamo just throw's a brand name on there guns like the Bone Collector etc. but it's just the same shooter in a different coat. If the trigger was made it would be a great improvement along with a Super Tune due to Gamo's new guide design. These things can still breath new life into a airgun that seems to be crying out for help. I wonder what would happen if Bob put's his time and effort into bringing forth another outstanding trigger to keep the Gamo alive then in a year or two the company takes another wrong turn with their airguns. :( I'm all for a new trigger design for the Gamo's  but I'm also for Bob enjoying his retirement but I think Bob has to tinker with the those airguns just like the rest of us. ;) Ed
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: Pete on October 01, 2010, 05:51:57 PM
Hi..
I have to agree with Shadow.....
A new trigger would be great as long as Gamo don't
change the gun again.....Then charlies time/efit/cost
would be for nothing... The new design would need at least a 5 year
production life to make it worth while...
Crosman invested heavly in gas rams so you can bet
the others haven't over looked that fact..Will there
be another change to a ram down the track ?
but then they mite just retro fit a ram if it happens..
the new model could be stage 1 of that process...
So much unknown

I surpose you need to weigh up set up cost against
the projected production life for the new model..
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: CharlieDaTuna on October 01, 2010, 11:47:17 PM
Yep Ed... just can't seem to leave them alone. Gamo and the Gamo customers have been good to me in the past and I feel that with a trigger and even a light tune, they could still be a good gun.


You are right Pete. It's a pretty big gamble and takes quite awhile to pay for itself but then like I said before....I ain't figgern' on gitten rich. Just the idea of making/providing an improvement for other hobby/enthusiasts means a lot to me. 
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: bradyman1 on October 01, 2010, 11:55:30 PM
That is an awesome attitude Bob! You have a great following and it is apparent why.
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: Rocker1 on October 02, 2010, 11:42:31 AM
 ANY thing that would improve the gamo design at this point would be a vast improvement, my hats off to you Mr Bob. Thanks David
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: shadow on October 02, 2010, 07:58:22 PM
If Bob put's this trigger into production and sales I will add it to my tuning options for the newer Gamo's with the plastic triggers. Ed
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: Plinker71 on October 02, 2010, 09:41:02 PM
A smoother pull and crisper break  on a trigger are always a plus.  I just bought a new CFX that unfortunately has the plastic trigger.  Gun still shoots well but needs some improvement.
I would definitely purchase one along with info on the tune.

Alan
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: Davee1 on October 03, 2010, 03:28:40 AM
Well...I would have no problem with installing a GRT-IV in my .177 Bone Collector that I rcvd as a gift.  And my brother just bought a BigCat1200 .177, and I could help him install one.
I kept thinking to myself how much better the Bone Collector would be if it had a better trigger.  And with the knowledge that a person can take the standard Gamo craptastic plastic trigger, and replace it with a quality aftermarket trigger...well that just keeps folks buying those Gamos.  I had stopped buying their products because of their plastic trigger.
So yes, I hope you do go forward with the GRT-IV.  I've got one leaning up against the wall in a corner, waiting for a better trigger.  And I already have my spring compressor, and have used it plenty of times.  ;D
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: maxiedog on October 03, 2010, 04:04:39 AM
Count me in. I hav 2 friends that love my BC but won't buy one because of the trigger. That would make 3 sales counting me. Even at a higher sale cost. Good luck with the project. Another thought- Offer pya and others this as an upgrade option. I mentioned this to PYA about a month ago for the GRT111
Question=  Would this also allow the nitro piston upgrade?
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: CharlieDaTuna on October 03, 2010, 01:18:12 PM
Yes, a Nitro upgrade would still work.
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: Tdubya on October 05, 2010, 12:11:51 PM
I passed on a good price for a Gamo SOCOM Tactical just because of the trigger issue.
And I don't visit Gamo Gate much anymore...
So yes, I think the GRT-IV is a great idea!

And thanks Bob for continuing support of the airgun community.

Terry
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: SniperX on October 07, 2010, 03:56:55 AM
 I have Gamo Whisper-X with plastic triggers.  I did some research and found this forum. 

Honestly, At first I was hesitant to register here.  I was disappointed with some people here giving negative comments about the plastic triggers of the new Gamo rifles especially the comment from this genius guy "CharlieDaTuna" who invented these GRTIII triggers.   

Now why am I here now?  Because I read that Mr. Bob finally came back to his senses.  Maybe there is hope and I felt happy.  If only I can invent something like the GRT-III triggers, maybe I will take the GRT-IV as a new challenge.  I want to learn more on this forum together with my friends from my country who has the new version of Gamo rifles.

Mr. Bob, you're good and a brilliant man.  I hope you will finish your GRT-IV anytime soon.  Kudos to you!
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: Rocker1 on October 07, 2010, 05:27:51 AM
 Welcome to the GTA  SniperX  glad to have you , sorry about the negative responses about gamos we still like them they just are not what they were and thats why the negative responses. Thanks David
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: shadow on October 07, 2010, 10:46:27 AM
I can't speak for Bob but It's not about someone coming to their senses and designing a trigger for the Gamo's it's about someone taking time out of their life to contribute something to so many.Their not in it for the money and more go's into designing, setting up the equipment etc. then most think. Bob has made many contributions to the airgunning world and if you know the man you would understand this and if it was that simple we would all have little trigger cookie cutter jig's stamping out triggers left and right. Many have stood behind the Gamo's despite their lack of customer service and part's service but if you look at the direction that Gamo has been heading it's not listening to the customers need's in a airgun but the big wig's sitting at the top floor who I believe don't have a clue about airguns and are only looking at $ signs. Just my pellet's worth. Ed
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: airindy on October 10, 2010, 03:42:54 PM
First off, we just installed your GRT-III in a Gamo Shadow and Crossman G-1.  WOW is all I can say.  What a improvement!  I would love for new Gamo owners to have the same experience of a Good Trigger; however, you stated it yourself: how many shooters have access to a spring compressor.  I see this as the major drawback.  Again I am amazed at your trigger design and my comment is not intent to reflect, in any way, on your ability or motivation.  I just hate to see you spend all that effort and $$$ only to have people not buy your product because of the installation requirements. 
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: gene_sc on October 10, 2010, 04:21:14 PM
I have Gamo Whisper-X with plastic triggers.  I did some research and found this forum.  

Honestly, At first I was hesitant to register here.  I was disappointed with some people here giving negative comments about the plastic triggers of the new Gamo rifles especially the comment from this genius guy "CharlieDaTuna" who invented these GRTIII triggers.  

Now why am I here now?  Because I read that Mr. Bob finally came back to his senses.  Maybe there is hope and I felt happy.  If only I can invent something like the GRT-III triggers, maybe I will take the GRT-IV as a new challenge.  I want to learn more on this forum together with my friends from my country who has the new version of Gamo rifles.

Mr. Bob, you're good and a brilliant man.  I hope you will finish your GRT-IV anytime soon.  Kudos to you!

Actually Hector this is Bob's second attempt for producing something that will work in the new Gamo triggers. First time he had it all on paper and never left his desk. But like Ed aka Shadow said, if you knew Bob you could understand the situation much better. Gamo discarding the Theoben all metal triggers for the new plastic triggers has been really upsetting for Bob and for sure many other air gun hobbyists/sports enthusiasts.

This time around Bob is putting his nose to the stone and has already put in many days on the board working with numbers and dimensions. This time it will not be as simple as replacing the trigger blade itself. This time the gun will have to be taken appart and that has its limitations for some.

Even with the GRT-III it took allot of money and time to come up with the right formula. Just look at CDT's web site and you will see there are over 20 some steps in the process of making the GRT-III.

Gamo has made it almost impossible to make this trigger better but if anyone can, it will be Bob aka CharlieDaTuna...:)
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: CharlieDaTuna on October 10, 2010, 09:38:06 PM
I'd like to thank you SniperX for your comments and a big welcome to you down there in Africa. Glad to have you.
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: Tim40189 on October 17, 2010, 01:13:55 AM
Bob,

I have nothing but good things to say about you and your products.  I would love to have a new Big Cat .22 but the trigger is the stumbling block there, and it's a big one for me.  I have your triggers in 7 of my own guns and have installed and sold twice as many to other customers of mine and learned from you, Gene, and Ed along with many others on the forum about the benefits and procedures for tuning air rifles.  I would buy the trigger in an instant, but one sale will not justify the costs of producing it and I realize this.  You've said in the past that Gamos' are a diamond in the rough and it is a very true statement, if you do find the way to develope and produce this product without over extending yourself it could be the best thing to happen to Gamo since the Spaniards sent Columbus out looking for the route to India.  This may open possabilites for a new generation of airgun nuts like ourselves to be able to enjoy the Gamo guns that you have poured so much of your time and efforts into over the years.  Good luck with whatever you decide Sir.
Tim
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: CharlieDaTuna on October 17, 2010, 12:08:41 PM
Thanks gang.  ;)

 A number of the issues have been worked out and I do have it pretty much on it's way. ;D Need to do a  little more testing and then the proto type. That requires making a temporary jig  and will then need to work out the CNC programming. Once there are a few made and the testing is complete on this end, I will be sending out a few to a few GTA members for testing also and to get their feed back and comments.  8)It is still a ways in the future though.... one step at a time. It took six months to get the final GRT-III design from paper to finished product. But..... it was right and that's what is important. :) :)
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: rmeyers on October 18, 2010, 05:09:04 PM
I am definetely anxious to obtain the GRT-IV trigger. And the added bonus of info on tuning and
parts sources makes this a no brainer. Sign me up.
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: eros on October 21, 2010, 12:40:16 PM
Me too!
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: crowpopper on October 21, 2010, 03:07:09 PM
id buy a new gamo then lol
installing it shouldnt be a problem for most of airgunners
and there has to be a ton of gamos out there already with the &^^& plastic trigger
i think go for it and you will have me buying one
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: mannbearpig on October 22, 2010, 01:08:38 PM
Bob, I am very grateful for the time, effort and money you are putting into the GRT-IV project. I intend on supporting your quality American made triggers when they become available. There are many of us who are not satisfied with one inch groups, or missing targets past 50 solely due to plastic spanish ingenuity. Your trigger is the solution. For all of us who aim for the eyeball, we thank you.
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: bart the fart on October 23, 2010, 02:39:45 PM
bob i have a gamo BC on its way just because you are making the grt4! got a good deal on the gun, but never would have bought it otherwise.looking forward to seeing what comes down the line....and if you need a gta tester PLEASE keep me in mind. it would be a pleasure! bart
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: CharlieDaTuna on October 23, 2010, 04:48:04 PM
Hope you didn't order it prematurely Bart. There is still a lot of work and testing to be done before we can start manufacturing it.
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: bart the fart on October 23, 2010, 05:52:57 PM
Hope you didn't order it prematurely Bart. There is still a lot of work and testing to be done before we can start manufacturing it.

oh, i understand...i used to be a welder in a machine shop. the cnc writing,let alone all the "everything" else that goes into a part. not easy stuff. but i have plenty of other guns to shoot in the mean time, and look forward to the grt4 when its ready. i'm sure it will be GRRRRTTT! thanks bart
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: zikerstu on October 29, 2010, 04:07:51 PM
I can't wait for news of the GRT IV! I just got my first pellet gun yesterday (Gamo Whisper .22) and sadly, it has the plastic trigger. I had to order it online from Wally World but at least I have the model I liked. (The whisper isn't allowed in my state but they shipped it anyway!)
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: Tazdev1123 on November 01, 2010, 03:01:50 AM
Hi everyone. New member here and new air gun owner. I bought a Gamo Silent Cat .177 and am having a blast. Research on the net eventually brought me to this site. I was ready to buy a GRT-III, but then I read that it would not work on the newer Gamo rifles with the plastic triggers. You should have seen the dust settling as I ran for a magnet to see if my trigger was metal or plastic! :-) Alas, no luck! The magnet fell like a dead duck! I have one question, would someone with no experience working on air guns be able to install the GRT-4? I am not unfamiliar with hand tools but I don't have a spring compressor and I don't know much about the inner workings of an air gun. Any ideas?.
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: Scotv66 on November 01, 2010, 10:41:22 AM
Bob - I am new to the forum but not new to airguns - I built a spring compressor last weekend with your simple design (took less than an hour to build) - I have a Socom Extreme - so there is another sale for ya.  This is my first post but I looked at many forums and landed here - I opened a 30+ year old FWB124 that was handed down from my Grandfather to my Dad to me, it had a pellet stuck in it for 20+ years - the pellet is out and I should be begging for help to bring the FWB back to its deserved condition.  "Thanks for all you guys Do!!!"
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: CharlieDaTuna on November 01, 2010, 07:30:02 PM
Thank a bunch and check with Gene. He loves working on the FWB 124 and 127 and knows how to fixm.. :D :D :D
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: Diemaker24 on November 10, 2010, 05:47:34 PM
I know this is an old thread but along with the other triggers ones i'm buying i would be interested in two grt4 triggers
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: 454 Big Block Chevy on November 22, 2010, 01:18:45 PM
Bob,
How are you coming on this idea?

Edward
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: Cptjbud on November 22, 2010, 01:55:29 PM
First time I saw this thread..  hmm

We need more people like Bob striving to benefit the world with good intentions.  Kudos for doing something for the benefits of others.  You've certainly made alot of friends here.  Sounds like you could certainly sell the old trigger for a hundred dollars if you wanted to and you'd still sell 'em all. 

Hope things are going forward with the new one.  The only thing that threw up the caution flag for me was that everyone would need to decompress the spring in the process.  I know if you sold the spring compressor, there'd probably be a bunch of liability going with it.  How would you be certain that the novice user would use it correctly and not injure himself in the process of the tune / mod?  Without selling a compressor, would you still have that liability being that it's still part of the process?  I'm sure it's a warranty killer too.  Sorry for all the lawyerese, but weird bad stuff usually happens to good people with good intentions.
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: elgallo8 on November 30, 2010, 06:53:11 PM
i would like to know if the GRT-III work for my GAMO SOCOM EXTREME?IF NEEDED.THANKS
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: CharlieDaTuna on November 30, 2010, 09:45:53 PM
The GRT-4 is still a work in progress and I can only work on this project as time permits.  :( And it has turned into a very expensive as well as time consuming project).  :'( :'(

The factory trigger has three safety's built into it and all three safety's will function in the GRT-4 also. This was a big hurdle. It's going to be a pain to make and most of the kinks have been worked out as well as most of the programming for the CNC machines. Still need to make the master Gigs for it.  ;) ;)

Then the final testing will be done.... and when I'm satisfied, and as with the GRT-III, a few shipped out for testing in the field.  ;D ;D One thing for sure though... I know everybody else is but I'm in no hurry and it will not be released until it is right. :) :)

We have also been taking the issue of the required spring compressor into consideration and there is a conditional work around that can be done and a spring compressor not needed.  ??? ???  I'm not ready to divulge that yet though. :-X :-X

Stay tuned  8)

CDT
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: Dittoz7 on December 01, 2010, 01:41:28 AM
Awesome news Mr. Tuna.
Maybe a rocket will find a way to me after all.
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: shadow on December 01, 2010, 07:24:52 AM
 ;D
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: nateious on December 01, 2010, 03:23:48 PM
Sweet!  ;D
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: zikerstu on December 01, 2010, 06:42:59 PM
Rock on!!
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: Tim40189 on December 02, 2010, 12:11:37 AM
Bob, you da man!!! ;D
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: renowntwo on December 02, 2010, 12:37:04 AM
Thanks Mr. Gene for the the update, I was just wondering how things are coming with the trigger for the gamo. a few friends really wanted to get a gamo AG but I asked to to wait a few months before they do.
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: Sgt on December 02, 2010, 12:41:53 PM
CDT,

I am new to this forum, but here is my question:  Do you have a trigger that will fit in the Gamo Rocket DX, it does have the plastic trigger at this time? 

Terry
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: CharlieDaTuna on December 02, 2010, 12:49:26 PM
There is not a replacement trigger available to replace any Gamo plastic trigger in any of their guns at this time.
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: Sgt on December 02, 2010, 12:53:50 PM
Thanks for the reply, I will return it today..................
Sgt
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: Addictedtoair on December 04, 2010, 12:33:12 AM
I see a lot of people smiling in my mind.
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: SniperX on December 06, 2010, 02:19:58 AM
GREAT! :)
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: yearslater on December 13, 2010, 06:55:29 PM
CDT,  Thanks for your efforts on a better trigger.  I will, no doubt, purchase one.
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: Gab-tex on December 13, 2010, 10:40:11 PM
Hi, I'm a newby that found this forum researching my new Big Cat 1200.(obviously with the plastic trigger) I'm glad to see Bob has the fortitude to support the air gunning interest. I believe he rewards himself with the mental exercise of overcoming an obstacle.

Personally I'm in line for the trigger upgrade also, for I'm one of those kind that can't leave well enough alone anything that can be improved. ;D
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: pharmrock on December 14, 2010, 04:35:07 PM
Yes sir! Count me in! I've already paid 109 dollars for Nitro Piston conversion and I would gladly pay CDT for GRT IV!! I'm sure retirement is great but don't stop doing what you enjoy especially if it brings reward to you and satisfaction to others!!! Go Man go!! I'll be happy to be the first recipient of the GRT IV. It will look great in my stocking and even better in my Whisper. Thanks!
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: dksac2 on December 28, 2010, 05:55:35 PM
My second post here.
I'm new to springer's. I'm a retired gunsmith, never worked on pellet guns, so it's a new adventure.
I just bought a GTX as the fixed barrel seemed better than a break barrel accuracy wise. I also didn't want to spend a lot on my first springer. Winter time blues have got me down and I needed something I can shoot when snowed in, AKA the pellet rifle.

I would love to have a good trigger for my rifle. It has the plastic trigger and in my old f*rt gunsmith position, I don't think plastic belongs on any firearm.
I think there would be a lot of interest. If you look at just about any gun catalog it usually has a section for pellet rifles. The Gamo line is always well represented and I'm sure they are selling quite a few of them, so you should have a very good market for them.

I know better than a lot of people do about the whole R&D process and the amount of time and money that goes into even a small part such as a trigger. It appears that the trigger in the Gamo controls more than just letting the spring go.

I thank you for your efforts and will gladly buy a trigger should you get it to market.

In the mean time, can someone point me to a good do it yourself spring compressor? A schematic for the Gamo would be great to find also.

Thanks and a great new year to everyone,  John K
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: jonny.177.22 on December 28, 2010, 07:19:36 PM
My second post here.
I'm new to springer's. I'm a retired gunsmith, never worked on pellet guns, so it's a new adventure.
I just bought a GTX as the fixed barrel seemed better than a break barrel accuracy wise. I also didn't want to spend a lot on my first springer. Winter time blues have got me down and I needed something I can shoot when snowed in, AKA the pellet rifle.

I would love to have a good trigger for my rifle. It has the plastic trigger and in my old f*rt gunsmith position, I don't think plastic belongs on any firearm.
I think there would be a lot of interest. If you look at just about any gun catalog it usually has a section for pellet rifles. The Gamo line is always well represented and I'm sure they are selling quite a few of them, so you should have a very good market for them.

I know better than a lot of people do about the whole R&D process and the amount of time and money that goes into even a small part such as a trigger. It appears that the trigger in the Gamo controls more than just letting the spring go.

I thank you for your efforts and will gladly buy a trigger should you get it to market.

In the mean time, can someone point me to a good do it yourself spring compressor? A schematic for the Gamo would be great to find also.

Thanks and a great new year to everyone,  John K
yeah, i had a gamo big cat before. the plastic trigger did not feel right and affected my accuracy.
by the way, have you ever seen rifles from crosman? cheap but not cheaply made. the crosman 1377 is most customizable pistol you can get. their titan is also powerful and good for the $150 dollar price tag.
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: Earl of Squirrel on January 17, 2011, 12:22:43 AM
I want one!
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: fireftr27 on January 17, 2011, 02:28:20 PM
Hello any word on the new trigger? For Christmas I Got a Whisper with the gas ram ,shoots good . Except for the trigger wow I never had such a bad trigger on any gun! So when this comes out I will get one!! Thanks 
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: CharlieDaTuna on January 17, 2011, 10:10:55 PM
We are very very close.  ;D ;D In fact, Gene may be posting something tomorrow after a little testing. ::) The first run will be about 100 pieces so that we can get some out and to see what the response to it will be.  ??? ???

 Still don't know the pricing yet but it will be a little more than the GRT-III and that was to be expected.  :-\ The reason is that the GRT-4G is a from the ground up, a far more complex machining and manufacturing process. I started to give up on it three or four times but I couldn't get Gene off my back... :) :) :) :)

Stay Tuned ;) ;) ;)
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: shooterpr on January 18, 2011, 03:25:57 AM
I'm new here and I'm in line also, I have two Gamo's in need of trigger upgrade. Best news since I found out my Gamo's with plastic trigger weren't compatible with the GRTIII trigger. It's not out yet the NEW GRT and I'm smiling from excitement.

To Bob, Gene and others, Thank you so much  for your effort in the sport.

Keep the good work.
Title: Re: New GRT-IV replacement for Gamo plastic trigger (Bone collector)
Post by: Mack90 on July 15, 2011, 02:02:32 PM
Does anyone have a schematic and/or disassembly/reassembly instructions for a Gamo Bone Collector?
Thanks,
M
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: gene_sc on July 22, 2011, 11:51:34 PM
The Bone Collector is same as all Gamo air guns with exception of Hunter Extreme and Recon.

Here is link that comes from GTA Library with breakdown of parts. Power plant is the same as I mentioned.

http://www.gatewaytoairguns.org/images/image002.jpg (http://www.gatewaytoairguns.org/images/image002.jpg)

If you have the new style plastic trigger in your gun then go to this link for more information.

http://charliedatuna.com/GRT-4G.htm (http://charliedatuna.com/GRT-4G.htm)

Video Installation for GRT-4G trigger here:

http://www.youtube.com/watch?v=32JPeoyp4gw&feature=view_all&list=PL6299944D9415C703&index=2#ws (http://www.youtube.com/watch?v=32JPeoyp4gw&feature=view_all&list=PL6299944D9415C703&index=2#ws)
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: r8nger on August 07, 2011, 02:48:13 PM
I just recieved mine this week ,and installed it. Wow!, what a difference.Lighter trigger, better feel. The biggest difference, was that I wasn't thinking about the trigger throughout the whole shot. The stock plastic one is that bad!It is a totally different gun now. Thanks for the dilligent effort on your part, it is greatly appreciated. I would highly recomend this upgrade to anyone with a new Gammo.You won't regret it,as it is the best bang for your buck available.Installation is a snap, the spring compressor is not necessary. All that is needed is an extra finger to push the cross pin out.

Gammo whisper .22
Title: Re: New GRT-IV replacement for Gamo plastic trigger
Post by: benjaminnpaw on October 10, 2011, 04:49:29 PM

Why am I bringing this up????    I would like to establish the interest, get your thoughts and to determine the acceptance to help me decide if I really want to invest my time and money in doing this.

Well, i for one am very glad!
Ordered my first air gun with (shop does it for me) a "charlie's angel trigger" because i like warranty :)  A gamo whisper igt, and right off with a good trigger, that is what i wanted after my benjamin trail np all wheater spunge-trigger that went broke (gun, not trigger) within 300 pellets..

Thanx's for making a gammo trigger !

Title: Re: REVISED 10/11/11: New GRT-IV replacement for Gamo plastic trigger
Post by: n8swag on January 21, 2012, 10:39:04 AM
Hey, I don't know where you get the plastic(or what type) for your triggers, but at dixie rubber and plastics in Greenville, SC (where I work) we can do cnc routing and water jet cutting for you... It might be cheaper to have us water jet out the parts in bulk...just a thought!