Armscor Precision Inc ACT-MAG Rock Island Armory 1911A1 CS .45 ACP 7 Round Pistol Magazine Blued 1 Pack 7RD. This magazine is for Compact sized 1911 models chambered in .45acp and holds 7 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 Armory 1911A1 CS .45 ACP 7 Round Pistol Magazine: Manufacturer: Armscor Precision Inc Gun Make: 1911 Platform Gun Model: Rock Island Armory 1911A1 CS Caliber: .45 ACP Magazine Capacity: 7 Round Quantity: 1 Fabric/Material: Metal Steel Features of Armscor Precision Inc ACT-MAG Rock Island Armory 1911A1 CS .45 ACP 7 Round Pistol Magazine Polymer base plate Blued Finish Rock Island Armory Compact Sized 1911's chambered in .45acp and like 1911 clones. Package Contents: Armscor Precision Inc ACT-MAG Rock Island Armory 1911A1 CS .45 ACP 7 Round Pistol Magazine What firearm models does the manufacturer say Armscor Precision Inc ACT-MAG Rock Island Armory 1911A1 CS .45 ACP 7 Round Pistol Magazine is compatible with? The manufacturer suggests that Armscor Precision Inc ACT-MAG Rock Island Armory 1911A1 CS .45 ACP 7 Round Pistol Magazine is compatible with Rock Island Armory 1911A1 CSArmscor Precision Inc 54172-7RD: ACT-MAG Rock Island Armory 1911A1 CS .45 ACP 7 Round Pistol Magazine Blued 1 Pack