Designed to meet, and exceed, rigorous military standards, the P220® Combat performs like no other .45ACP available. Each pistol features the military’s Flat Dark Earth finish on its alloy frame and SIG’s Nitron® finish over a stainless slide. Internal parts and controls are phosphated for extreme corrosion resistance and reduced friction while the barrel is hard chromed and finished in Nitron® which easily passes the military’s accuracy requirements – even after 20,000 rounds. The P220 Combat also passes the military’s 240-hour salt spray corrosion test. Additional features include a M1913 Picatinny rail, vertical front strap serrations and SIGLITE® night sights.