Windham Weaponry HBC (Heavy Barrel Carbine) in 7.62x39 with 16-inch heavy chrome-lined barrel and carbine-length gas system. Uses a modified bolt head for reliable extraction of the semi-rimmed 7.62x39 case in an AR-15 pattern platform, offering AK ballistics with AR ergonomics. Type: Rifle Action: Semi-Automatic Caliber: 7.62x39 Capacity: 30 Year introduced: 2015, USA Weight: 104 oz Overall length: 32.5" Status: Active Intended use: Hunting, Sport Shooting, Tactical