The S-LOCK wedge on the Seekins HIT Precision Mount is the answer to a worry-free, slip-proof, fire-and-forget mounting system. The S-LOCK wedge takes up the spacing between Picatinny rail slots, eliminating any rail movement for the most rock-solid scope mount on the market. Simple and easy to install with no added weight for springs, levers, clamps, and anything else to slow you down. The HIT Precision Mount is designed to place you and keep you on the leading edge of performance. FeaturesAerospace grade 7075 aluminumBlack anodized finishRock-solid scope mount