Armscor Shotgun Magazine, 12 Gauge, 19 Rounds, Fits VR60/VR80 Shotguns, Steel, Blued Finish 42379 This Rock Island Armory magazine for VR60" VR80 and Bull Rocket Shotguns is a standard factory replacement magazine. This extended magazine has a 19 round capacity and is chambered in 12 Gauge. 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.