WEAVER 48282, Grand Slam Base, S466

The WEAVER 48282 Grand Slam Base, model S466, is a precision scope mounting base designed for firearms requiring reliable, repeatable optic attachment. This base system delivers the accuracy foundation serious shooters and tactical professionals demand, engineered to maintain zero through extended use, field transitions, and demanding training cycles.

Built to Weaver's documented standards for base-to-receiver fit and load distribution, the S466 platform accepts standard Weaver-profile rings and mounting systems. The Grand Slam designation reflects this base's purpose: delivering the consistent, repeatable performance required when precision matters. Proper installation onto a compatible receiver ensures that your optic returns to zero after removal and reinstallation—a critical requirement for duty weapons, competition rifles, and hunting platforms where equipment changes occur in the field.

This base serves law enforcement, military, competitive shooters, and hunters who prioritize optic stability and zero retention. Whether mounted on an AR-pattern upper receiver, bolt-action rifle, or other Weaver-compatible platform, the S466 provides the mechanical foundation for accurate shot placement at distance. Buyers integrating optics into existing firearms systems will find this base compatible with the broad ecosystem of Weaver-standard rings and accessories already in field use.

Weaver bases remain the industry standard for aftermarket scope mounting, recognized across military, law enforcement, and civilian marksmanship communities. The S466 continues this legacy, offering proven reliability without premium cost—an ideal solution for upgrading or building a rifle platform where optic capability is essential.