Mauser Rimfire 4150021 M-15 10rd 22 LR Black Polymer
https://www.tandktactical.com/shop/713440971013-mauser-rimfire-4150021-m-15-10rd-22-lr-black-polymer-28781
https://www.tandktactical.com/web/image/product.template/28781/image_1920?unique=2378bfd
This replacement or spare magazine is compatible with your Mauser M-15.
