need advice on m305 trigger problem, trigger wont return to forward position.

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cheeseburgereatin

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I just got a new socom 18 and when I pull the trigger when it is not cocked, the trigger won't return to the forward position, it is mushy it feels like something is rubbing on the stock somewhere. I suspect the stock is causing the problem because the trigger group works fine when removed from the stock. I am going to go grab my other shorty and look at the inside of the stock i think they might have forgot to remove some of the material, and they have the nerve to raise prices.

Yea I just looked, absent QC is the culprit i suspect, now i have to figure out how to shave away the material that isn't supposed to be there, will suck since I don't have a dremel.

anyone who was wondering how nice these new socom 18's are, I will tell you. They are the exact same as any other shorty, the one I got I would say is worse than my 2011 shorty, op rod guide thing on barrel is loose and oprod/piston alignment is cockeyed as can be, front sight is all the way to the right to compensate. the flash hider is nicer but mine is on so tight I'm starting to wonder if it's cross threaded, it looks a little crooked.
 
i got it figured out, when i put it together the pressure from the trigger guard just pushed a little to much on the trigger pivot point, so i dumped a bunch of oil on it and now it at least functions although its still quite sticky feeling.
 
cheeseburgereatin said:
i think ill go shoot the crap out of it first, hopefully it will smoothen out a bit
Click to expand...

This will probably help, but I suspect that you will find that the trigger is slightly misaligned in the trigger housing and is rubbing on edge of the trigger slot in the hammer. With the trigger group removed and the hammer cocked the trigger should be in the center of the hammer slot with clearance on both sides. Likely it is not, this is a common problem with Norc trigger groups - the trigger pin axis is not perpendicular and is drilled slightly off. This causes the trigger to lean just enough to contact the hammer, which can cause the trigger to stick when the hammer returns (cocks) and the trigger is held back. Relieving and smoothing only this contact area should fix this issue - but don't mess with the sear surfaces or hammer hooks.

Simply replacing parts may not help if the trigger housing has a misaligned trigger pin bore. Also, correct fitting will be required as these will not be drop in pieces. This is not a trivial process and should not be attempted unless you are absolutely sure of what you are doing. Mistakes here will render the rifle unsafe and can result in unintentional full auto fire and possible out of battery detonation.
 
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