SDS Imports Tanker Features The 1911A1 Tanker is an upgraded 1911 in 45ACP with the following features: Hammer forged hard chrome plated 4 1/4 Commander length barrel hammer forged frame hammer forged Commander length slide beveled magazine well flat main spring housing commercial style thumb safety. Includes one 8 round magazine and cleaning kit. SDS Imports Tanker Specifications Manufacturer: SDS Imports Model: Tanker Action: Semi-automatic Type: 1911 Caliber: 45 ACP Barrel Length: 4.25 Color: Black Capacity: 8Rd Material: Steel