The head space has not been checked. How do I make sure that the gas block is properly aligned. All I did was eyeball it. What is the proper barrel port size? What should I use to polish the chamber?
Thanks.
It does lock back manually. I have tried the Mil Spec and Mag Pull Mags. Its a factory lower with a stock bolt catch from the orignal. I bought a rifle length gas tube & used the same gas block.
Hello, I owns a DPMS .308 and have switched to an anderson 20' barrel. The rifl shoots and cycles well, however wont lock open on the last shot. has anone ever had this issue?