U.T.G ACCU-SYNC Tactical base with 34mm rings fits weaver base. Features: Designed with significant lightening cuts to massively reduce weight without compromising durability Radiuses edges and corners to prevent snagging, scratching, or tearing of other gear and for effortless access to scope windage and elevation turrets Single mount utilizes locking Torn screws and square-shaped integral recoil stops for a secure zero hold Precision CNC Machined from aircraft-grade aluminum and finished in a blue anodize, designed to fit on MIL-STD-1913 Pica tinny rail platform 22mm saddle height, 34mm Offset distance, 100mm base length, high profile fits 1-inch tube optics with up to a 69mm outer objective diameter