Armscor Precision Inc RIA-MAG 1911 .45ACP 10 Round Pistol Magazine Blue. This magazine is for Full and Mid sized 1911 models chambered in 10mm and holds 8 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 RIA-MAG 1911 .45ACP 10 Round Pistol Magazine: Manufacturer: Armscor Precision Inc Gun Model: 1911 Caliber: .45 ACP Magazine Capacity: 10 Round Color: Blue Additional Features: Magazine Handle Color: Blue Number of Rounds: 10 Features of Armscor Precision Inc RIA-MAG 1911 .45ACP 10 Round Pistol Magazine: Steel Magazine Body Package Contents: Armscor Precision Inc RIA-MAG 1911 .45ACP 10 Round Pistol Magazine What firearm models does the manufacturer say Armscor Precision Inc RIA-MAG 1911 .45ACP 10 Round Pistol Magazine is compatible with? The manufacturer says that Armscor Precision Inc RIA-MAG 1911 .45ACP 10 Round Pistol Magazine is compatible with 1911