The Bushmaster ACR (Adaptive Combat Rifle) was developed from the Magpul Masada concept, featuring a fully ambidextrous design, folding stock, and quick-change barrel system for caliber adaptability. Type: Semi-Auto Rifle Action: Gas-Operated Caliber: 5.56x45mm Capacity: 30 Year introduced: 2009, USA Weight: 8.2 oz Overall length: 36.5" Status: Discontinued Intended use: Tactical, Home Defense, Collector