The P220 Nitron is the standard production P220 with the Nitron PVD finish replacing the earlier blued or stainless options. It represents the production standard for the P220 from the late 1990s onward, with SIGLITE night sights and consistent Nitron finish that resists corrosion and holster wear better than traditional bluing. The vast majority of P220s encountered on the used market are Nitron-finish variants. Type: Semi-Auto Pistol Action: DA/SA Caliber: .45 ACP Capacity: 8 Year introduced: 1999, Germany/USA Weight: 30.4 oz Overall length: 7.7" Status: Active Intended use: duty, target, collector