I wouldn't touch a piston system in either an AR 15 or AR 10 until they have been around long enough to develop a reputation for reliability. As far as I am cocncerned the jury is still out.
I wouldn't touch a piston system in either an AR 15 or AR 10 until they have been around long enough to develop a reputation for reliability. As far as I am cocncerned the jury is still out.