DPMS Panther chambered in .204 Ruger — one of the first AR-15 builders to adopt the hyper-velocity varmint cartridge. The 16-inch barrel with a 1:12 twist stabilizes .204 Ruger's lightweight 32–40 grain bullets at velocities exceeding 4,000 fps. Type: Rifle Action: Semi-Automatic Caliber: .204 Ruger Capacity: 30 Year introduced: 2004, United States Weight: 96 oz Overall length: 32.5" Status: Discontinued Intended use: Varmint Hunting, Recreational Shooting