Ruger 90712 Ruger-5.7 Value Pack 10rd 5.7x28mm Fits Black Oxide Steel 2 Per Pack
https://www.tandktactical.com/shop/736676907120-ruger-90712-ruger-5-7-value-pack-10rd-5-7x28mm-fits-black-oxide-steel-2-per-pack-21615
https://www.tandktactical.com/web/image/product.template/21615/image_1920?unique=95e63e7
This value pack replacement or spare magazine is compatible with your Ruger Ruger-57. Made in the USA.
