TRU TG-TG948DD FAT BEAD 5-40 DUAL COLOR
http://www.tandktactical.com/shop/788130015377-tru-tg-tg948dd-fat-bead-5-40-dual-color-36618
http://www.tandktactical.com/web/image/product.template/36618/image_1920?unique=f7e47aa
Truglo's largest diameter fiber-optic bead replacement sight. This sight features 5-40 threads. Fiber Diameter: 0.120".
