Savage Arms 90020 BMAG Series 8rd Rotary 17 WSM Black Polymer
http://www.tandktactical.com/shop/011356900203-savage-arms-90020-bmag-series-8rd-rotary-17-wsm-black-polymer-13866
http://www.tandktactical.com/web/image/product.template/13866/image_1920?unique=e8e74a8
This rotary replacement or spare magazine is compatible with your Savage BMAG series.