Ade Advanced Optics Heavy Duty Quick Detach QD LOW Scope Rings Set 30mm 1" Picatinny/Weaver with Accessory Rail Tops, 1 inch, 30 mm Robust and User Friendly Ergonomic Quick Detach/Lock Lever Fully Adjustable to Fit on Any Picatinny Rail Built with extra material for heavy duty us Metal size inserts for use with both 30mm and 1inch scopes Low 21mm center height. See-Thru Design Standard with six sided hexbolts for maximum hold under extreme conditions and automatic weapons fire