As the first pistol equipped with a firing pin lock, the P99AS combines the advantages of the traditional Double Action System with a single-action anti-stress trigger. The anti-stress trigger makes the Walther P99 pistol one of the world's safest firearms by preventing unintentional "reflex" firing in stressful situations. The 4-inch barrel of the P99AS has a black finish and has adjustable 3-dot night sights for pinpoint accuracy. The black polymer frame is accented by polymer grips and interchangeable cushioned rear grip straps to fit individual hand sizes and is able to chamber twelve rounds of powerful .40 S&W ammunition. This double-action pistol features a striker decocking button and includes a 12-round double stack magazine. Its grips and metal are in very good condition and its bore is in excellent condition.