The P220 Combat with threaded barrel is designed to meet, and exceed, rigorous military standards. The P220 Combat performs like no other .45ACP available. The threaded 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. Outfitted with a true M1913 Picatinny rail, vertical front strap serrations and SIGLITE night sights.