Rock Island 54180B 1911 17rd 9mm Luger 22 TCM Blued Steel
https://www.tandktactical.com/shop/812285021331-rock-island-54180b-1911-17rd-9mm-luger-22-tcm-blued-steel-5156
https://www.tandktactical.com/web/image/product.template/5156/image_1920?unique=073c293
This replacement or spare magazine is compatible with your Rock Island 1911.
