Shop › MAG RUGER BX15 77/17 22WMR/17HMR 15R MAG RUGER BX15 77/17 22WMR/17HMR 15R $32.95 Ruger Magazine, BX-15, 17 HMR, 22 WMR, 15 Rounds, Fits M77/17, 77/22, American Rimfire and Precision Rimfire, Polymer, Black 90585 Quantity: Add To Cart Added! Ruger Magazine, BX-15, 17 HMR, 22 WMR, 15 Rounds, Fits M77/17, 77/22, American Rimfire and Precision Rimfire, Polymer, Black 90585