Armscor Precision Inc ACT-MAG Rock Island 1911 A1 Pistol Magazine 9mm Luger 10 Round Blued 1 Pack Steel. This magazine is for A-1 1911 models chambered in 9 mm and holds 10 rounds of ammunition. It is made of steel and is made to Armscor/Rock Island Armory specifications and tolerances using the same manufacturing and materials as the original equipment magazines ensuring perfect fit and operation. Specifications for Armscor Precision Inc ACT-MAG Rock Island 1911 A1 9mm Luger 10 Round Pistol Magazine: Manufacturer: Armscor Precision Inc Gun Make: 1911 Platform Gun Model: 1911 Caliber: 9mm Luger Magazine Capacity: 10 Round Color: Blued Quantity: 1 Fabric/Material: Metal Steel Package Contents: Armscor Precision Inc ACT-MAG Rock Island 1911 A1 9mm Luger 10 Round Pistol Magazine What firearm models does the manufacturer say Armscor Precision Inc ACT-MAG Rock Island 1911 A1 9mm Luger 10 Round Pistol Magazine is compatible with? The manufacturer suggests that Armscor Precision Inc ACT-MAG Rock Island 1911 A1 9mm Luger 10 Round Pistol Magazine is compatible with 1911Armscor Precision Inc 45201-10RD: ACT-MAG Rock Island 1911 A1 Pistol Magazine 9mm Luger 10 Round Blued 1 Pack Steel