4.5″ 5.56 NATO

With a 4.5-inch barrel length, this is an extremely short and compact AR-platform pistol. Being a high-pressure round, 5.56 coming out of a barrel this short is loud, like a flashbang—which makes this pistol all the more intimidating. With the high gas pressure of the 4.5″ 5.56 combined with the two-chamber muzzle brake mitigates virtually all recoil, making this a very controllable firearm to shoot.