AmeriGlo UTSP137 Universal Shoe Plate Black Steel for Sig P290RS
https://www.tandktactical.com/shop/644406908869-ameriglo-utsp137-universal-shoe-plate-black-steel-for-sig-p290rs-959
https://www.tandktactical.com/web/image/product.template/959/image_1920?unique=f7939fc
This Shoe plate is for Universal Sight Pro Tool that fits Sig model P290RS.