The Kahr PM45 stands as the flagship of Kahr's premium micro-compact line, chambering the potent .45 ACP in a surprisingly compact frame. Built around a 3.14-inch match-grade polygonal-rifled barrel with 5+1 round capacity, this pistol maintains a remarkably slim 1.01-inch width while weighing just 17.3 ounces unloaded. Premium features include dovetailed tritium night sights, enhanced slide serrations for positive manipulation, and match-grade barrel construction with polygonal rifling. The polymer frame features optimized grip texturing patterns strategically placed for maximum control of the substantial .45 ACP recoil, while the stainless steel slide is available in matte or blackened finish options. The PM45 incorporates Kahr's signature double-action-only trigger system with smooth, consistent pull and offset feed ramp design for enhanced reliability. Standard equipment includes two magazines (one flush-fit 5-round and one extended 6-round), allowing users to optimize between concealment and shooting characteristics. Additional premium features include loaded chamber indicator, external slide stop lever, and passive striker block safety system. The PM45 represents the ultimate evolution of Kahr's design philosophy, delivering full-size .45 ACP performance in an ultra-compact package suitable for deep concealment.