Ruger 90345 77/357 5rd Rotary 357 Mag Black Polymer
https://www.tandktactical.com/shop/736676903450-ruger-90345-77-357-5rd-rotary-357-mag-black-polymer-11746
https://www.tandktactical.com/web/image/product.template/11746/image_1920?unique=e210562
This rotary replacement or spare magazine is compatible with your Ruger 77/357. Made in the USA.
