45 ACP, This pistol has a 4” stainless steel barrel with a bright excellent bore. The metal surfaces retain about 98% original Armornite finish with a touch of chamber wear on the barrel a light handling mark or two. The black polymer grip frame with Picatinny rail on the dustcover rates about excellent. This “Law Enforcement Only” version features no thumb safety,, three factory 10-round magazines, two extra backstraps, the original plastic box.