Xtreme Tactical Rings were built to withstand brutal use from competitors and tactical operators. They are lightweight have plenty of holding power and can endure any amount of recoil. - Fits on any Weaver or Picatinny-style mount - Available in a variety of sizes - Ideal for tactical use - Also great for hunting rifles slug guns and muzzleloaders - 1-in. and 30 mm models are made of aluminum for optimum weight savings - 34 mm models are all-steel to handle the biggest scopes on the market - Thin 4-screw 34 mm models and wide 6-screw 34 mm models are available; both offer tremendous grip and hold - Quick-detach models available - Optional Picatinny rail on top of ring allows for attachment of accessories on top of a mounted scope - 1/2-in. Picatinny Risers are available for extra height and better sight alignment