Ruger 90701 Ruger-5.7 10rd 5.7x28mm Black Oxide Steel
https://www.tandktactical.com/shop/736676907014-ruger-90701-ruger-5-7-10rd-5-7x28mm-black-oxide-steel-21614
https://www.tandktactical.com/web/image/product.template/21614/image_1920?unique=aaa1f8b
This replacement or spare magazine is compatible with your Ruger Ruger-57. Made in the USA.
