Weaver Grand Slam Features Four screws and two straps combine to distribute clamping pressure evenly around the scope tube giving these rings additional gripping power that resists the tube from slipping under repeated recoil impulses. The solid steel construction is engineered specifically for the best available recoil resistance in a ring of this size which means a scope stays zeroed through extended range sessions rather than walking off point of impact. Thumbscrews built into the design let a shooter detach and reattach the rings by hand without searching for a hex key or screwdriver when swapping optics between rifles. That tool-free design also makes it simple to pull a scope for cleaning or storage and return it to the same reliable position afterward. The Ruger-style dovetail fit and 1 tube diameter make these rings a natural match for the many .22 rimfire rifles built on that mounting standard and the high ring height provides clearance for larger objective bells common on rimfire scopes. Finished in nickel the rings also give a rifle a distinctive look that pairs well with stainless or nickel-finished rimfire actions. Shooters who frequently swap optics between range days and hunting trips will appreciate the tool-free thumbscrew design as much as the rock-solid steel build since both work together to keep mounting fast and repeatable. The two-piece design and included hardware make these rings a straightforward upgrade for anyone assembling or refreshing a rimfire optic setup. Weaver Grand Slam Specifications Brand: Weaver Model: Grand Slam Tube Diameter: 1 Material: Steel Finish: Nickel Ring Height: High Pieces: 2 Fit: Ruger Style Available At: GrabAGun