The Alexander Arms Highlander in 6.5 Grendel with a 20-inch barrel is a purpose-built long-range hunting rifle on the AR-15 platform. Alexander Arms developed the 6.5 Grendel cartridge in 2003 to extend the AR-15's effective range well beyond what 5.56 could achieve. From a 20-inch barrel, the 6.5 Grendel launches a 123-grain Lapua Scenar at 2,580 fps — enough for ethical shots on deer and hogs at 600 yards with a ballistic coefficient that resists wind deflection far better than any 5.56 load. Type: Rifle Action: Semi-Automatic Caliber: 6.5 Grendel Capacity: 26 Year introduced: 2010, USA Weight: 115 oz Overall length: 39.5" Status: Active Intended use: hunting, hog_hunting, precision, long_range