The SIG516 G3 is SIG SAUER's short-stroke gas-piston take on the AR platform, and the piston system is the point: combustion gases work a pushrod instead of venting into the receiver, keeping the bolt carrier cooler and dramatically cleaner through hard use — a real advantage in a short-barreled 5.56 like this 11.5-inch configuration, where standard direct-impingement guns run hottest and dirtiest. Black furniture, a free-float rail, and a 30-round magazine complete the package. Compact, overbuilt, and famously low-maintenance, the 516 G3 is the piston AR for shooters who'd rather shoot than scrub carbon.

This firearm ships to your chosen FFL dealer for transfer. Order online from Dawson Defense, an Arizona-owned licensed dealer and importer.