The Walther PPS is short recoil operated, locked-breech pistol that uses modified Browning-type locking with tilting barrel. The frame of the gun is made from impact-resistant polymer. It uses a double-action only trigger, striker fired, with a pre-cocked striker system. This system requires manual recocking by partial slide retraction in the case of misfire. The gun is fitted with an automated trigger safety and firing pin block. An additional "storage type" safety is provided by the removable backstrap of the grip; once the backstrap is removed, the firing pin is automatically decocked and the gun is blocked until the backstrap is reinstalled. This patented system is called QuickSafe by Walther. Sights are low profile, with rear sight adjustable for windage. Holds 6 rounds of .40 S&W ammunition. 3.2" barrel. Matte black finish.