Made in America, Talley Manufacturing's RMR Mounts are machined entirely from high grade 6000 series alloy and protected with a hard-coat anodizing to 65 Rockwell ensuring the craftsmanship of these Direct RMR Mounts last the lifetime of your firearm. The Mossberg RMR Mounts are all designed and manufactured with precision to fit your shotgun 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 your specified firearm. Whether you are looking for to upgrade your favorite turkey gun or tactical shotgun, this RMR Mount offers a light weight minimized mounting solution for RMR Foot print optics.American Made, Lightweight 6000 series Aluminum AlloyFully CNC MachinedIncludes mounting screws and wrench.Designed to fit Mossberg Shotguns.Uses two most rearward mounting holes only for proper red dot sight placement.Minimized size to accommodate RMR Foot print optics.Includes Mounting ScrewsLength: 1.78"Width: 1.1"Mounting screw hole spacing: .5"