The lightweight mounts are designed to fit over and attach to both sides of the receiver, providing balanced support for any scope. They are robustly constructed to endure even the heavy recoil of slug shots. Installation is quick and straightforward, simply remove the trigger group pins and replace them with the included bolts. Please note that weaver-style rings are required but not included. The product features a black anodized finish on aluminum, providing a sleek, durable, and corrosion-resistant surface that enhances both aesthetics and longevity