For a while now, photos of a very unusual AK-style rifle using an AR gas system have been making the rounds on social media sites, and we now know it’s real, courtesy of Polenar Tactical. A prototype design by Tinck Arms, the rifle doesn’t use a true direct impingement gas system, but a hybrid system using a remote short-stroke gas piston. What Tinck Arms achieved with the combined gas systems is a free-floating barrel, to make an AK shoot without the characteristic barrel whip. And because the piston system is separated from the bolt carrier, it also produces noticeably reduced...