Gas port is the problem.. 1/8 drill bit, drill and open up the gas port. My buddy went round and round with a 450 bushmaster. New gas tube, new gas block, buffers etc. Still didn’t fix it. i talked to Deflave about it short stroking and failure to eject. He said open up the gas port. My buddy did and All problems were fixed and ran like a champ.
Last edited by 79S; 05/06/20.
