To those of you who are pretty well versed in short barreled full autos here is my problem. I have an M16 lower with Safe/Semi/Full trigger pack. I have a 10.5" barrel w/ carbine length gas system. I cannot get it to reliably run, sometimes it will run fine for about 10-12 rounds before a double feed, sometimes it wont go 2 rounds before a double feed. It occurs on Auto and Semi, I have used about 15 different magazines, regular- H3 buffers. I for the life of me cannot figure out why it will not run right.
Any help would be greatly appreciated.
Any help would be greatly appreciated.