GTA
Airguns by Make and Model => Crosman Airguns => Topic started by: DeutschKSK on May 15, 2011, 02:09:17 AM
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Here's some pictures of my creation. No name for it yet. Sure shoots good though! Just need some 30mm rings that are not weaver.
List the mods you have done to it as well.
PC77 from Wallyworld
24" .22 Barrel from Mellon Air
Flow-through bolt & 3/4th handle from Mellon Air
Tippmann Stock Adapter from Mellon Air
Rap 4 stock from Ebay
Steal breach from Crosman
2289 forearm & barrel band from Crosman
AC Flat top internals, trigger spring, power spring, pump arm pin, shroud in 1" diameter from AC custom parts
That's it for the mods. Shes got a SWFA 10x scope.. BSA 30mm rings UTG adapter... UTG 1" tactical ring on the shroud, harris adapter / bipod 6-9BR.
Awesome gun! 10 pumps 14.3 Premier @ 530 FPS. Can pump her 20+ times for more power. I have shot targets out to 80 yards.. no problems. Very pleased.
(http://img818.imageshack.us/img818/2645/dsc00114de.jpg)
(http://img855.imageshack.us/img855/6940/dsc00116x.jpg)
(http://img197.imageshack.us/img197/3447/dsc00117kg.jpg)
(http://img40.imageshack.us/img40/839/dsc00118lf.jpg)
(http://img849.imageshack.us/img849/5919/dsc00120i.jpg)
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Here's mine; a hunter's and plinker's delight!
(http://img854.imageshack.us/img854/9844/im006678.jpg)
(http://img848.imageshack.us/img848/3672/im006682.jpg)
-Walnut furniture from RB Grips
-Crosman steel breech
-Mac 1 high flow bolt
-10.25 inch .22 barrel (crowned)
-Barrel band from Blue Fork Design
-BSA 2X20 pistol scope
-More to come! (Flat top setup maybe?)
Andrew
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A couple of years ago I went on a pumper kick.... The 2289 is very popular in Canada, but I have my PAL so am not restricted to under 500 fps.... It's basically the same as a 1377 but with a 14.5" barrel in .22 cal and a skeleton stock.... so I figure it should be OK to post here.... I spent the first while learning the platform, fitting a Flat-topped Piston and Valve, etc, and playing with springs.... Then I decided that if I used a bigger pump I could use fewer strokes.... I purchased the pump tube and linkage from a Crosman 2100/2200 which has 50% more swept volume.... and the eventual result was a gun I dubbed my "Uber-Pumper"....
(http://i378.photobucket.com/albums/oo221/rsterne/Uber-Carbine/Uber-PumperwithScope.jpg)
The gun has a 24" Crosman .177 barrel and uses a 2289 valve with a sear spring inside and ported for better flow.... but that was actually a waste of time except for velocities over 800 fps in .177.... I settled on a Discovery hammer spring to allow the highest velocities before the valve retained air.... The final version reached 991 fps at 30 pumps with 7.8 gr. JSB Express pellets.... There are a lot of modifications involved in using a 2200 tube, but the obvious external one is the "breech band" which is required to mount the front of the trigger group.... This gun achieves 500 fps at 3 pumps, 800 fps at 10 pumps, 900 fps at 17 pumps, 950 at 21 pumps, and 990 at 30 pumps.... with no retained air.... It is equipped with a Leapers 6 x 32 "Bug Buster" scope and sees most of it's time being used for busting grasshoppers at 2-3 pumps.... where the 3 yards close focus ability of the scope comes in handy.... I have a couple of other pumpers I'll post next....
Bob
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Since my .177 Uber-Pumper was so successful, I decided to do one in .22 cal.... but that was going to use more air.... I got a pump tube and linkage from a Crosman 1400 which has twice the swept volume of the original 13XX/2289 pump.... I wanted more valve volume, so I made an extension from the back half of another valve....
(http://i378.photobucket.com/albums/oo221/rsterne/22%20Uber-Pumper/Extension.jpg)
This required more pumping at low velocities, but was capable of more power than a stock valve at the top end.... When I fitted this valve into my .177 Uber-Pumper I actually got it to break Mach.... In the .22 version, it would send 14.3 gr. JSB Express pellets downrange at 890 fps before it began to retain air.... that's over 25 FPE from a Crosman pumper....
(http://i378.photobucket.com/albums/oo221/rsterne/22%20Uber-Pumper/22Uber-Pumper.jpg)
Getting that kind of performance comes at a price.... The 1400 pump requires effort at anything over 10 pumps.... which gives 750 fps.... The gun is extremely difficult to pump by the time you get to pump # 20 which is what it takes to get that 25 FPE.... It was a cool experiment, and I learned a lot.... but not very practical.... and I sold the gun not long after completion.... What evolved from it, though.... is in the next post....
Bob
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Using what I had learned from my Uber-Pumpers.... and living in Grouse country.... I decided to do an Uber-Carbine.... It looks very similar to a 2289, the main difference being the 2200 pump to reduce the number of strokes....
(http://i378.photobucket.com/albums/oo221/rsterne/Uber-Carbine/Uber-CarbineEmail.jpg)
Most of the changes are on the inside.... Here are the parts I made....
(http://i378.photobucket.com/albums/oo221/rsterne/Uber-Carbine/Uber-CarbineParts.jpg)
The 2200 tube needs some changes to allow the valve to be moved back.... The valve itself needed a flat and a set-screw to accomodate that as well.... The F-T-P and flat valve face are pretty normal stuff.... as are the improved pivot pin and front pivot plug/barrel band.... The breech band required to retain the trigger group is on the bottom left.... In the photo below you can see the bottom side of the 2200 tube and the trigger groups, drilled for the band....
(http://i378.photobucket.com/albums/oo221/rsterne/Uber-Carbine/Uber-CarbineTrigger.jpg)
This gun is capable of over 750 fps at 22 pumps with 14.3 gr. JSB Express pellets, using a Disco hammer spring with the RVA wound in almost to coil bind.... I was interested in seeing if I could get two shots at a bit lower velocity, however, by using retained air.... By carefully balancing the hammer spring preload and the number of pumps, I was able to get the gun to deliver a single shot of 600 fps with 10 pumps.... or TWO shots at that velocity with 19 pumps.... The advantages of a backup shot without repumping for Grouse hunting are obvious.... Here are the performance curves....
(http://i378.photobucket.com/albums/oo221/rsterne/Uber-Carbine/WebUber-CarbineVelocity.jpg)
Note how much difference the Disco spring made to the maximum number of pumps before retained air compared to the 2289 spring.... effectively double.... and another 100 fps.... Also note that I could also have tuned the gun for two shots at about 670 fps and 30 pumps.... or a single shot of the same velocity at 14 pumps.... had I decided I needed more power.... As it is, 11.4 FPE at the muzzle..... and 8 FPE remaining at 35 yards.... is plenty for the type of Grouse hunting I do.... and man, did I ever learn a lot about pumpers.... ;D
Bob
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Very nice, Gentlemen.
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OK, here's mine...
An early phase 1 with the old style pistol grip and breach
(http://i79.photobucket.com/albums/j147/airgunandy/phase1-rear.jpg)
My latest rifle conversion
(http://i79.photobucket.com/albums/j147/airgunandy/22LongRiflepumperjpg.jpg)
A carbine I built awhile back
(http://i79.photobucket.com/albums/j147/airgunandy/1377Carbine-w-scope.jpg)
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Bob(rsterne) can you share info on how you raised the comb on your 1399 stock? Is it adjustable or a cut an rod deal? Sure alot of P-rod owners would like to know.
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Impressive stuff guys.
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I shortened the stock as well as raised the comb.... and nothing is adjustable.... The risers are 3/8" OD Carbon tubing.... If you look closely at the bottom of the stock just in front of the butt, you will see a join where I shortened it.... I dowelled that together and glued it.... Basicallly I just drilled 3/8" holes, ground grooves where appropriate (in the butt piece) and glued it all together with JB Weld epoxy.... I presume you could use aluminum tubing, or even blued steel, as JB Weld stick to pretty much anything....
Bob
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Thanks Bob,never noticed till you pointed it out that you had shortened it(nice job). GREAT LOOKING GUNS EVERYONE keep them coming!!!
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rsterne>>
Is that band something you had to mill specifically or is it a re appropriated part? I am interested in building something similar minimize pumps, mostly for low fps plinking.
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It is an original design and I machined it myself.... HOWEVER, I gave the drawings to a machinist in Ontario, Canada who produces them.... He goes by "DerekVinyard" on the Canadian Airgun Forum and his name is Michael.... He also carries the Trakar 0.040" wire hammer springs (stiffer than a Disco spring).... Great guy to deal with....
Bob
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I take it it was required since the valve was not in the same location to use the forward screw? Think I will have to read up some on this sort of mod so I know what is going on with the tube and internals :D
For the heck of it my gun fairly stock with some internal goofing around and a steel breech while I wait for shipments. Replaced and messed with the sear spring flattened out all contact surfaces inside too. Replaced all the ext hardware except the breech screws.
(http://img546.imageshack.us/img546/7823/pc77008.jpg)
update on the gun
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Correct.... IIRC, the 2200 tube does not have a hole for the trigger group/valve screw anyway.... I machined the front of the valve off just behind the original mounting hole anyway.... and then I moved the valve back to increase the pump stroke.... The original 2200 valve is a tiny thing.... If you need dimensions, PM me.... I think I still have my drawings kicking around....
Bob
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oh, is the tube dai different from a 2289 1377? I was thinking of using aftermarket flat tops.
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Tube diameter on the 2100/2200 and the 140/1400 is the same as the 13XX/2289.... 3/4" OD x 0.065" wall.... 0.615" ID....
Bob
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My 1377 sniper
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Nice guns guys!
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here's mine
polished phase 2
(http://i613.photobucket.com/albums/tt211/edf73/P3270389.jpg)
LS13XX
(http://i613.photobucket.com/albums/tt211/edf73/PICT0026-2-1.jpg)
homebuilt(2) 1377
(http://i613.photobucket.com/albums/tt211/edf73/PICT0031.jpg)
homebuilt(1)
(http://i613.photobucket.com/albums/tt211/edf73/P8160290-1.jpg)
phase 1 with phase 3 upper
(http://i613.photobucket.com/albums/tt211/edf73/P7230281.jpg)
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Here's Mine.
(http://i1195.photobucket.com/albums/aa397/squallywally/SANY0044_zpsd08c395d.jpg) (http://s1195.photobucket.com/user/squallywally/media/SANY0044_zpsd08c395d.jpg.html)
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just added another to the stable!
(http://i613.photobucket.com/albums/tt211/edf73/P8190419.jpg)
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How did I miss out on this? Love these pistols.
(http://i6.photobucket.com/albums/y243/Rescue35/IMAG0182.jpg)
(http://i6.photobucket.com/albums/y243/Rescue35/IMAG0178.jpg)
(http://i6.photobucket.com/albums/y243/Rescue35/IMAG0160.jpg)
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Just got mine on Saturday.......$36.90
(http://i1141.photobucket.com/albums/n589/USMC7579/Airguns/DSC011662.jpg)
Mods coming it the near future......... :D
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aren't they fun.limitless possibilities...
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My favorite/most used plinking AG...
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Here's mine:
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My first attempt at modding a Crosman 1377.
(http://i9.photobucket.com/albums/a52/ircameraman/1377modsweb.jpg)
Larry
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A work in progress... .22 cal
(http://i69.photobucket.com/albums/i42/rafeer896/065.jpg)
This picture is with a set of my 10m grips on but without the adjustible hand shelf installed, so that is what the grooves are for. The grips and forearm also need stippled as well. The 13xx gun is my favorite airgun without a doubt.
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Those are awesome!! I just ordered my first air gun which is the 1377. I can't wait to start the mods on it. Where do you get all the parts from?
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Those are awesome!! I just ordered my first air gun which is the 1377. I can't wait to start the mods on it. Where do you get all the parts from?
Checkout:
http://airgunartisans.com/ (http://airgunartisans.com/)
http://www.mountainaircustomairguns.com/New_accessories_page.htm (http://www.mountainaircustomairguns.com/New_accessories_page.htm)
http://accustomparts.com/default.aspx (http://accustomparts.com/default.aspx)
http://www.mellonair.com/ (http://www.mellonair.com/)
That will get you started.
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Nice guns, Guys! Really!
Bob, that two-shot design is the SHIZZ! Seriously. I wonder if it could be simplified and boiled down to it's essence and put into production or semi-custom production... At a price...
Seriously, it's brilliant. No expensive pump. No CO2 limitations. No SCUBA stuff. Two fast shots and not too many pumps to go again. About the only thing more I'd want is an LDC.
As I type, I'm liking the gun concept more and more. If you don't mind, how much do you have in it and could you guide someone through the process?
M
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Great lookin' guns guys , I really enjoyed building mine . With all the possibilties out there it has crossed my mind more than once to build a second one . Maybe the 1322. Like anything else the scond build should benefit from from the knowledge gained in the first, got a lot of ideas on what to do with it.
Got another project I have been working on, hopefully will start getting some pics up soon.
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(warning, possible hijack below)
A couple thoughts come to mind as I look at all these guns. They're all directed at Crosman.
First, Crosman needs to make an adjustable carbine stock. EVERYONE wants a higher cheek weld, sooner or later and many need a bit more length (or less). How tough would that be? Or at least a cheep cheek piece that will clip or screw on. I mean, have a designer plan it and job it out to china. I suspect that the first 100,000 would sell FAST. I mean, if you've got a 22XX, or a 13XX or a PRod, you could use or desperately want/need this kind of thing.
Second, while Crosman is talking to the molders, they might want to have them do some neat fore-grips and even grips to improve the 1377.
Third, Crosman really, REALLY needs to expand the Custom Shop offerings to the 13XX line. It would be very nice to be able to order a 1377 as a 1322 with a 14" barrel, brass receiver, and camo fore-grip and stock. I have to think that everyone who has a CS 22XX is a reasonably likely 13XX buyer. And while that's cool on it's own, what about being able to start there before you do some of the other valve mods?
I'm going to dupe this as a separate thread, in fact.
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I see we need to go down this road again, part of the attraction to this gun for me was cost effectiveness, ability to be modded to whatever I wanted, and the fact that they bothered to keep it mostly produced in this country. Suggesting that Crosman really needs to produce upgrade parts and job it out to china is total BS and would have caused me by a different gun. Why are you so stuck on us not having any manufacturing jobs left here?
I see by the first line your intent was to hi-jack this thread and hope those watching take both your post and mine down immediately as I will not stand by and allow you to try and corrupt everything that resembles an American made product for those of us who want to continue to buy them. You know as well as I, I will go the distance on this arguement, so before you post anymore outdated irrelevant videos on the steel industry from the 1970's, take it down yourself and allow the rest of us to enjoy a decent Mostly made in US airgun without this petty nonsense.
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I'm new to modding air pistols.....here's my 1377 that's an on going project. I'm looking into internal mods now.
(http://i51.tinypic.com/2gwyirk.jpg)
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I see we need to go down this road again, part of the attraction to this gun for me was cost effectiveness, ability to be modded to whatever I wanted, and the fact that they bothered to keep it mostly produced in this country. Suggesting that Crosman really needs to produce upgrade parts and job it out to china is total BS and would have caused me by a different gun. Why are you so stuck on us not having any manufacturing jobs left here?
I see by the first line your intent was to hi-jack this thread and hope those watching take both your post and mine down immediately as I will not stand by and allow you to try and corrupt everything that resembles an American made product for those of us who want to continue to buy them. You know as well as I, I will go the distance on this argument, so before you post anymore outdated irrelevant videos on the steel industry from the 1970's, take it down yourself and allow the rest of us to enjoy a decent Mostly made in US airgun without this petty nonsense.
MM, as you know, I can take you the distance and with more hard economics to back me up, but really I just want to say, "Lighten-up, Francis". :)
I and millions of others want more than is offered I don't much care if I have to buy it from overseas, though I like it when I can buy what I need locally. The point is that when the ONLY way to get what we need is to fabricate ourselves, well, while it's fun, it also results in less of us getting what we want/need. That may be part of why the work in this thread is so impressive--it's RARE and special. That's fantastic, but it would be nice to have more of us a bit better served with the guns we want and need. My desire is to have Crosman step up a bit more on these guns. I do not presume to have standing to tell them how to source the components of their product.
I would love to educate you on the economics and ethics of trade, but that really WOULD be a hijack and is beyond the purview of this entire site, I think.
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All I am trying to get you to do is argue this perspective in an appropriate setting, hi-jacking a thread devoted to a product I am fairly certain you don't even currently own doesn't seem to be the one.
From an American standing up for Americans,
to an "American" who continuously stands up for china.
The carbine stock is made here and there is no reason you couldn't have suggested a addition to the product line that didn't involve farming out the labor, moreover I don't think it was coincidence your timing in bringing this up. Again my apologies to all affected by this , the guns posted here are all excellent and I hope this thread can continue uninterupted.
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MM,
All I can say is a) you're wrong, and b) you're misrepresenting reality. You don't get to tell ME or others my motivations, nor do you get to assert what I'm "doing" when it doesn't remotely reflect reality. At least not without stern correction. And that's all I have to say about that.
Now, are you ready to lighten up and move on? Sheeze.
M
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Here's Mine.
(http://i1195.photobucket.com/albums/aa397/squallywally/SANY0044.jpg)
I am liking this alot.....Great job. Send me a PM so I can copy you. :) Just kidding,....No, really do.
That's Bad Axe........Thanks for giving me a great new project (In the future of course, First things first)...
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very nice ,vet
likin the flash hider !!!
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My 1377 sniper
Where did you get the forearm?
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Thanks for the compliment. I was pleased how it turned out. However it is one of those things where it is never done. I have a couple of things I would like to do yet so I have been searching for the right parts.
I will post a pic when I finish up the "next" stage.
:D
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forearm was from a crosman 1389 / 2289 backpacker.
this is what I did with the " muzzle protector "
ordered an AK47 style muzzle brake for a Ruger 10/22 from Custom Gun Services. (oops doesn't look like they are in business anymore)
actually you can get one on amazon too,)
It has a slot for the sight of the 10/22 and it has an I.D. of 5/8"
I went to a hardware store (Lowe's) and bought a nylon spacer 5/8" O.D. 3/8" Thick and drilled it out to 7/16"
also bought two rubber grommets 5/8" O.D. 3/8" I.D. (Its rubber and it will stretch around the barrel and have a nice tight fit.)
I put a grommet on both sides of the nylon spacer, put them on the barrel, and then worked the muzzle over them and worked the whole assembly into place.
Then I drilled a small hole through the set screw hole on the brake into the nylon spacer and screwed in the set screw.
Painted what showed of the spacer with some flat black paint,
Viola! A muzzle brake for $10 and change
(http://i1195.photobucket.com/albums/aa397/squallywally/SANY0248_zps4d12d0bd.jpg) (http://s1195.photobucket.com/user/squallywally/media/SANY0248_zps4d12d0bd.jpg.html)
(http://i1195.photobucket.com/albums/aa397/squallywally/SANY0249_zps360ee4b8.jpg) (http://s1195.photobucket.com/user/squallywally/media/SANY0249_zps360ee4b8.jpg.html)
(http://i1195.photobucket.com/albums/aa397/squallywally/SANY0250_zps6e2a05c1.jpg) (http://s1195.photobucket.com/user/squallywally/media/SANY0250_zps6e2a05c1.jpg.html)
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Another Pic
(http://i1195.photobucket.com/albums/aa397/squallywally/SANY0057_zpsb41831b6.jpg) (http://s1195.photobucket.com/user/squallywally/media/SANY0057_zpsb41831b6.jpg.html)