The most trusted scope mounts in the world. Wide top straps hold under the toughest recoil. To remove a Weaver detachable top-mounted scope, you just loosen two thumb nuts, and it's off. Remounting is just as easy. Tighten each thumb nut until both are snug, and you're back to zero. Available in a wide variety of styles and finishes to fit just about any firearm. With this kind of rugged versatility - it's no wonder Weaver continually sets the performance standards for all manufacturers. For use with Weaver-style bases, sold separately.