BX-1 10-round, .22 LR caliber magazine is made of black plastic with steel feed and works with any factory original 10/22® Rifle, SR-22® Rifle, 22 Charger™ Pistol and .22 LR Ruger American Rimfire® Rifle. Magazine will function in the .22 LR Ruger 77/22® Rifle, but the contoured base does not match the profile on the bottom of this rifle; the JX-1 Rotary Magazine (#90057) is recommended for this rifle.
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