Talley RMR Mounts are machined entirely from high grade 6000 series alloy and protected with a black anodized finish ensuring the craftsmanship of these Direct RMR Mounts last the lifetime of firearms. The Remington 870 RMR Mount is designed and manufactured with precision to fit Model 870 with the industry's tightest manufacturing tolerances. These RMR Direct mounts provide a mounting platform for RMR foot print Red Dot optics eliminating the need for a picatinny rail or other adapters for specified firearms.