08-24-2011, 09:03 PM
davidj Wrote:[ATTACH=CONFIG]371[/ATTACH]grendel.jpg
You hit it right on the head. My upper came back this AM. I am trying to attach note that came with it. I still cant get a bipod on it. I am off to the range to see how it works.
More to follow.
This is why I prefer to unitize my bolt carriers and carrier keys myself, with a high-temp locking compound, on an M16-weight carrier. Black Loctite or other hardened metal epoxy resins for the screw threads and carrier key to bolt carrier body junction, with proper screw torque.
Also, the upper has only half of the equation for your entire system, leaving out the buffer and recoil spring, which could make or break you. Good thing AA found the loose carrier key.