these stable metallic bases offer most mounting flexibility. They work with all weaver-style, % tinny-style, and mil-spec rings. Burris has constructed a recognition for some of the maximum stable, dependable earrings and bases in the marketplace. The appropriate shooting solution succeeds or fails due to the mounting system. Jewelry and bases are critical to getting and staying on the right track, round after round. Pick from a extensive range of patterns and sizes to match your shooting platform.