This genuine RugerA(R) factory magazine has been tested and proven to feed as reliably as the BX-1 10-round magazine. In addition, the BX-15 will work with any factory original 10/22A(R) Rifle, SR-22A(R) Rifle, 22 Charger Pistol, .22LR Ruger American Rimfire Rifle and 22 LR Ruger 77/22A(R) Rifle. 15-round capacity Black polymer construction Fits factory original 10/22A(R) Rifle, SR-22A(R) Rifle, 22 Charger Pistol, .22LR Ruger American Rimfire Rifle and .22LR Ruger 77/22A(R) Rifle Order today!