The DPMS Panther 6.8 SPC is chambered in 6.8 SPC (Special Purpose Cartridge), a cartridge developed by USSOCOM to improve terminal performance over 5.56 NATO in the AR-15 platform while maintaining a standard AR-15 lower receiver. Features a 16-inch barrel and standard DPMS lower. The 6.8 SPC provided improved wound ballistics at the cost of reduced magazine capacity versus 5.56. Type: Rifle Action: Semi-Automatic Caliber: 6.8 SPC Capacity: 25 Year introduced: 2006, USA Weight: 6.4 oz Overall length: 32" Status: Discontinued Intended use: Hunting, Tactical