The Leapers UTG ACCU-SYNC QR Scope Rings are built around a quick release mounting system that lets shooters remove and reinstall their scope without losing zero. A tool-free tension adjustment lets the shooter dial in the exact clamping force needed while a locking quick release lever secures the rings firmly onto the Picatinny or Weaver style rail. Squared recoil stops anchor the rings against the rail s cross slots preventing shift under recoil and ensuring a consistent return to zero every time the scope is remounted. The medium ring height with an actual height of .590 inches sets the scope at a comfortable cheek weld height for most rifle configurations. Machined from 6061-T6 aluminum these rings are precision CNC cut with lightening cuts that trim overall weight without compromising structural durability. All sharp edges and corners are removed and radiused giving the rings a refined snag-free finish that matches the matte Black anodized coating. At 4.4 ounces for the 2-piece set the rings add minimal weight to a rifle build while fitting 30mm tube optics with an objective outer diameter up to 60mm. Backed by a manufacturer limited lifetime warranty these ACCU-SYNC rings are built for shooters who value a dependable repeatable scope mounting solution. Leapers ACCU-SYNC QR Scope Rings Specifications Manufacturer: Leapers Model: ACCU-SYNC QR Scope Rings Material: Aluminum Finish: Anodized Color: Black Pieces: 2-Piece Ring Height: Medium (.590) Tube Diameter: 30mm Mount Type: Picatinny/Weaver Weight: 4.4 oz Warranty: Mfg Limited Lifetime Available At: GrabAGun