AR-556 carbine chambered in 7.62x39mm with a 16-inch barrel. Uses an AK-compatible bolt face and dedicated magazine well insert to reliably feed the tapered 7.62x39mm cartridge. Provides inexpensive surplus-ammunition compatibility in a Ruger-quality AR build. Type: Semi-Auto Rifle Action: Gas-Operated Caliber: 7.62x39mm Capacity: 30 Year introduced: 2023, USA Weight: 6.6 oz Overall length: 32.3" Status: Active Intended use: Range, Hunting, Home Defense