Kel-Tec P15 9mm Luger 4in Pistol – 15+1 Rounds – The Kel-Tec P15 is a striker-fired, polymer pistol that weighs only 14oz and boasts a 15+1 capacity right out of the box. It’s the lightest, thinnest double-stack 9mm handgun on the market. The P15 is an excellent choice for concealed carry. The 15 round magazine utilizes an innovative, patent pending magazine extension that makes the 15+1 total capacity a reality. Also included is a convenient flush fit magazine that holds 12 rounds for the most compact configuration.