DPMS's entry-level 16-inch Panther carbine in 5.56 NATO. Mil-spec direct impingement with a M4 feed ramp upper and standard carbine-length gas system. The GX 223 was DPMS's volume workhorse — sold in enormous quantities to budget-conscious buyers throughout the 2000s. Type: Rifle Action: Semi-Automatic Caliber: 5.56x45mm NATO Capacity: 30 Year introduced: 1998, United States Weight: 96 oz Overall length: 32.5" Status: Discontinued Intended use: Recreational Shooting, Home Defense