Armscor Precision Inc RIA MAG Rock Island Armory TCM Rock Standard .22 TCM 10 Round Pistol Magazine Blued 1 Pack. This magazine is for either Full Size or Mid Size A-2 models chambered in 22TCM 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 RIA MAG Rock Island Armory TCM Rock Standard .22 TCM 10 Round Pistol Magazine: Manufacturer: Armscor Precision Inc Gun Make: Rock Island Armory Gun Model: Rock Island Armory TCM Rock Standard Caliber: .22 TCM Magazine Capacity: 10 Round Color: Blued Quantity: 1 Fabric/Material: Steel Attachment Type: Picatinny Features of Armscor Precision Inc RIA MAG Rock Island Armory TCM Rock Standard .22 TCM 10 Round Pistol Magazine It fits RIA FS and MS A-2 chambered in 22TCM Package Contents: Armscor Precision Inc RIA MAG Rock Island Armory TCM Rock Standard .22 TCM 10 Round Pistol Magazine What firearm models does the manufacturer say Armscor Precision Inc RIA MAG Rock Island Armory TCM Rock Standard .22 TCM 10 Round Pistol Magazine is compatible with? The manufacturer says that Armscor Precision Inc RIA MAG Rock Island Armory TCM Rock Standard .22 TCM 10 Round Pistol Magazine is compatible with Rock Island Armory TCM Rock StandardArmscor Precision Inc 54181-10RD: RIA MAG Rock Island Armory TCM Rock Standard .22 TCM 10 Round Pistol Magazine Blued 1 Pack