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Old December 29th, 2010, 20:28   #6
aka coachster
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Join Date: Mar 2008
Location: T dot
Originally Posted by Renegade) View Post
On my M4, the bottom of the bolt catch channel is solid, I just superglued a small spring to the bottom of the catch itself to hold it tight against the upper, no more rattle.
Ha. I just lose mine in disassembly then pretend I did it on purpose so it's not sitting on the bench making me want to reinstall it.
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