The Sig Sauer P320-M17 CO2 Powered Air Pistol lets you train with a CO2 replica of the semi-automatic pistol that was chosen by the US military for the new US service pistol–the M17. The P320-M17 air pistol is chambered for .177 pellets and has a 20-round pellet magazine. The metal slide utilizes a blowback action to cycle pellets into the chamber and CO2 power propels the pellets up to 430 fps. The pistol features open sights and the polymer frame has a built-in Picatinny rail for attaching aftermarket laser sights or tactical lights. The Sig Sauer P320-M17 CO2 Powered Air Pistol is an authentic, economical way to train both indoors and outdoors. CO2 and pellets sold separately.