Originally Posted by MarkCO
Thankfully, the Piston ARs shine is wearing off and DI systems are back in vogue.
If I were to want a piston driven gun, then I wouldn't be picking up an AR of some sort in the place. I've always thought that piston AR deal was silly. You take a gun that wasn't designed for a type of mechanism, then try to half-assed engineer a mechanism in to replace the original design.