Burris Xtreme Tactical Rings 30mm X-High 1 in. Height Two RingsBurris Xtreme Tactical Rings 30mm X High 1 in. Height Two Rings Fits on any Weaver or Picatinny style mount; Also great for hunting rifles, slug guns, and muzzleloaders; Quick detach models available; Optonal? Picatinny rail on top of ring allows for attachment of accessories on top of a mounted scope Item Category Code: 4000 Product Group Code: 4000C Product Sub Group 1: 4000C2 Inactive: No