The Christensen Arms CA-15 G2 features a carbon fiber-wrapped stainless steel barrel for extreme weight reduction and heat dissipation, combined with a billet 7075-T6 aluminum receiver set. Type: Semi-Auto Rifle Action: Gas-Operated Caliber: 5.56x45mm Capacity: 30 Year introduced: 2020, USA Weight: 5.8 oz Overall length: 35" Status: Active Intended use: Precision, Hunting, Competition