The Windham Weaponry SRC in 6.8 SPC (Special Purpose Cartridge) is built around the cartridge developed by US Army Marksmanship Unit and Remington in 2002 to improve terminal performance over 5.56 NATO. The 16-inch chrome-lined barrel and carbine-length gas system are optimized for the 6.8 SPC II chamber. Windham's Maine craftsmanship applied to a cartridge that briefly competed with 6.5 Grendel for special operations consideration. Type: Rifle Action: Semi-Automatic Caliber: 6.8 SPC Capacity: 25 Year introduced: 2013, USA Weight: 66 oz Overall length: 32.5" Status: Active Intended use: Hunting, Home Defense, Patrol Rifle