Auto Ordnance 1911 45 Auto (ACP) 5in Matte Black Pistol - 7+1 Rounds - The Thompson 1911A1 Matte Black pistol has a 5in barrel and brown checkered plastic grips. It is chambered in 45 ACP and has a capacity of 7+1. It is constructed of carbon steel and has a matte black finish. Sights: Blade Front / Drift Adjust Rear, Low Profile Iron Thumb safety Weight: 39 oz.