TRU TG-TG948BD FAT BEAD 3-56 DUAL
http://www.tandktactical.com/shop/788130015353-tru-tg-tg948bd-fat-bead-3-56-dual-27018
http://www.tandktactical.com/web/image/product.template/27018/image_1920?unique=ead1dc1
The Fat Bead is a large diameter fiber-optic bead replacement sight. This sight features 3-56 threads.
