I got my 6 mags in Jan. Looked great, but i didnt get a chance to fire them til this past Sunday 02/18. Unfortunately on 2 of the 6 functioned well. The other 4 had the same problem. After the first round fires, the bolt catches on the next round. I think the mags may sit high in the mag well. It was almost impossible to pull pull the charging handle all the way back to chamber the next round. I had to pull the mag out, use the BHO, insert the mag, then chamber a round. I thought about it being an ammo issue, but i used african and paki surplus and Federal Match ammo. Went back to 8 rnd mags &