Precision AR-15 pattern rifle chambered in the proprietary 6.5 Grendel cartridge developed by Alexander Arms. 18-inch barrel optimized for the cartridge. Provides .308 Winchester long-range performance from a standard AR-15 lower. Type: Rifle Action: Semi-Automatic Caliber: 6.5 Grendel Capacity: 25 Year introduced: 2004, USA Weight: 7.5 oz Overall length: 37.5" Status: Active Intended use: Precision / Hunting / Range