The 2A Armament Xanthos Lite is an ultralight AR-15 featuring a titanium barrel nut, titanium muzzle device, and 2A's proprietary lightweight handguard, targeting sub-5-pound rifle builds. Type: Rifle Action: Semi-Automatic Caliber: 5.56x45mm NATO Capacity: 30 Year introduced: 2016, USA Weight: 54 oz Overall length: 32" Status: Active Intended use: Hunting, Tactical