A2 stock.Well, it is all sorted out now.I loaded up 50 rounds with 27.5 grains of CFE223.5 rounds in 10 -20 round magazines.It stayed open when the mags were empty and did not skip a beat.I was thinking that when I Dyna-Bore coated the barrel the gas hole got partially plugged and had to work it self clean.All is good.Now I will shoot for some groups.Huntz
