Heizer Defense PKO45.

Heizer's 'Pocket 45' pocket pistol is constructed of aerospace-grade stainless steel with a fixed barrel for less moving parts and a snag-free design for conceal carry. This ultra-slim semi-auto is just .8" wide and weighs 25 oz. With it's revolutionary barrel-under the guide rod configuration, less recoil is felt by the operator. Chambered in .45 ACP, the PKO carries a 5 round capacity with the flush magazine. PKO firearm has a loaded chamber indicator. The indicator allows you to observe whether a cartridge is in the chamber. When a cartridge is in the chamber the indicator protrudes out. This is visible with red markings and is tactile. When the loaded chamber indicator is out, the firearm is loaded and ready to fire.