60MPH
Expert Expediter
Just wondering if anyone is using a gas piston upper set-up on there AR, or if you are lucky enough you registered full auto AR/M16. Been looking at them for awhile now, thinking of buying a 10.25" upper gas piston set up for one of my green stamp lowers. I already have 9.25", 16" and a 24" bull barrel uppers. Just looking for something a little different I have heard good things about them but I have no real world experience with them. Come on I want to know what u gun nuts think