GTA
Airguns by Make and Model => Crosman Airguns => Topic started by: CharlieDaTuna on October 06, 2011, 01:49:05 PM
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Hair trigger fix
11/21/12
NOTE: This fix would apply to the Benjamin Trail NP-XL and Crosman Titans with a very short pull or hair trigger
It has been determined that most (but not all) of the hair trigger issues in a very few Crosman and Benji guns and are caused by differences in some of the intermediate levers in some of the triggers. It is known that in a very few trigger assemblies that a few of the Chinese intermediate levers may be a few thousandths thicker than the normal tolerances in most triggers and just enough to not allow it to seat into the slot of the GRT-III trigger properly. A few thousandths one way or the other can make a considerable difference and the Chinese manufacturers seem to be indifferent to tolerances or quality control. The fix is very simple.
Remove the stock and the GRT-III trigger. Then check to see whether or not the intermediate lever, the one that sets up in the slot of the GRT trigger, sets up inside of and seats in the slot. There is a strong possibility that it does not.
If the lever does not seat into the GRT-III trigger slot properly, using a file or Dremel Tool, file the surface of the sides of the lever down a couple thousandths or enough to allow the lever to properly seat in the trigger slot.
The alternative is while using care, to file or widen the slot of the GRT-III trigger slightly. Or you could even dress both the lever and trigger to get the desired fit but I suggest filing down the surface of the lever. Again, this can be done using a file and/or a Dremel Tool.
…WARNING…
WHEN WORKING ON YOUR TRIGGER, DO NOT REMOVE… I REPEAT… DO NOT REMOVE ANY PINS OTHER THAN THE TRIGGER PIVOT PIN.
You do not need to remove your trigger block from your gun to do this mod.
On some triggers there may be a plastic insert that the original factory trigger adjustment screw screwed into in the rear of the trigger housing. The insert blocks the lever from popping up. If your trigger has one these inserts, remove the adjustment screw if you have not already removed it during the installation and then pop the insert out. This will allow the intermediate lever to pop up (it is spring loaded) to be accessed and worked on without disassembling the trigger. When finished, push the lever down and reinstall the insert.
Thank you and enjoy your GRT trigger.
CDT
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I did this yesterday for my titan and it is super easy just a little time consuming with having to put everything back together and back in the stock to do some test shots to check ur work as you go..
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I sure am glad my G1 Extreme doesn't have this problem. My GRT III is plug and play.
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Charlie,
Have you ever considered making entire trigger assemblies, rather than just the trigger blade by itself ?
It would be great if trigger assemblies with the precision of a center-fire rifle were available, with super precision and adjustability !
Dave
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I could do that but the cost to make and market a complete trigger would be so great that no one could justify spending that much money on these guns. :o Not only that, many customers say that the GRT-III and GRT-4G trigger works so well now in most guns that it is comparable to a lot of match triggers anyhow with out the expense. ;D ;D ;D So why...??? ??? ???
CDT
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I could do that but the cost to make and market a complete trigger would be so great that no one could justify spending that much money on these guns. :o Not only that, many customers say that the GRT-III and GRT-4G trigger works so well now in most guns that it is comparable to a lot of match triggers anyhow with out the expense. ;D ;D ;D So why...??? ??? ???
CDT
Charlie,
Thanks for replying !
I guess I was thinking more in terms of a "kit" to replace all of the "critical" moving parts, in addition to the Trigger Blade . . .
I'd love to see a trigger that could provide:
(1) Short "Stages"
(2) A clean "Wall" at the end of the 1st stage
(3) Near-Zero "Creep"
(4) Light, Crisp "Pull", without "Over-Travel"
(5) Precisely adjustable
Maybe that's asking a lot, but one can always hope . . .
In closing, keep up the great work, Charlie !
Dave
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Charlie, your triggers are the stuff man !!
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I have owned a few Nitro guns the first thing I did was put a CDT trigger in them night and day difference thanks for the great triggers Bob and the good service to boot. Tim A.
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Two clarifying questions on filing a detent in the intermediate lever that I haven't found answers to in the Forum. If done correctly, is this a fix that works in all cases or like the hair trigger problem itself - only works for some? If the latter is the case, will the stock trigger function correctly after the modification?
I've got a Benjamin Trail NP XL in .22 that I purchased a GRT-III trigger for and it exhibits the hair trigger problem. I've re-installed the stock trigger successfully (without filing the intermediate lever) and all is well. I'm just concerned about making a one way modification and making the rifle unusable.