In 9mm or .40S&W, the PPS has several notable features aimed at better fit and safe performance in its narrow dimensions. From your choice of perfect-fitting backstrap (small or large) to our patented QuickSafe innovation. Ambidextrous magazine release. Two magazine sizes (third optional). Loaded chamber & cocking indicators. Small & large backstrap. Trigger safety. Internal striker safety. Walther QuickSafe safety. 9mm caliber 6 & 7 round magazines included (8 rounds available). 40S&W caliber. 5 & 6 Round magazines included (7 rounds available).