Hello everyone. Bought a new RRA entry tactical today. When I got it home I found the bolt wouldn't lock back manually or with an empty mag. The bolt catch was trying to lock on the carrier instead of the bolt face. Suspecting they put the wrong buffer spring in I took the rifle apart. I found the buffer retainer to be missing. Apparently it had come loose and was floating around in the lower. Anyways trying to replace the buffer retainer has proven futile. If I screw the buffer tube into the rifle anymore to properly secure the buffer retainer, it blocks the upper and lower from mating. What the hell rock river!? Anyone have any advice here? Guess I learned my lesson on making sure everything works before I buy something. The rifle was still wrapped up in its plastic unopened when I bought it so I figured it would be ok.