Pearce Grip PGFI48 Grip Frame Insert Compatible w/Glock 43X/48, Black Polymer
https://www.tandktactical.com/shop/605849800073-pearce-grip-pgfi48-grip-frame-insert-compatible-w-glock-43x-48-black-polymer-18834
https://www.tandktactical.com/web/image/product.template/18834/image_1920?unique=b9e53ac
The Pearce Grip Frame insert fits in the bottom rear cavity of a Glock 43X/48, utilizing a friction fit to secure it in the frame.
