DPMS Panther Arms 733 5.56 NATO Pistol, 11.5" Barrel The DPMS Panther Arms 733 is a 5.56 NATO pistol with an 11.5-inch barrel. The 733 model designation, cartridge chambering, and barrel length define the core firearm configuration. The barrel measurement describes the barrel component, giving buyers a specific dimension to consider alongside the cartridge designation. Caliber and barrel length describe different aspects of the firearm: 5.56 NATO identifies the cartridge, while 11.5 inches identifies the barrel dimension. Matching the cartridge designation is central when selecting ammunition. Barrel length does not state overall firearm length, so it should be considered as its own component specification when choosing the 733 configuration. Key Features 733 model: The supplied product identifies the firearm as model 733. 5.56 NATO chambering: The cartridge designation is 5.56 NATO. 11.5-inch barrel: The measurement identifies barrel length. Specifications Brand: DPMS Panther Arms Model: 733 Product type: Pistol Caliber: 5.56 NATO Barrel length: 11.5 inches Shop the DPMS Panther Arms 733 5.56 NATO Pistol, 11.5" Barrel at BattleHawk Armory.