EGW Mossberg 500 Scope Mount Features EGW Mossberg 500 Scope Mount is machined from 6061-T6 extruded aluminum providing a lightweight yet rigid mounting platform that resists flex and movement under the recoil of shotgun slugs and heavy loads. The Picatinny rail profile accepts a wide range of standard rings and mounts giving Mossberg 500 series owners broad compatibility with virtually any optic or accessory designed for Picatinny mounting. A matte black finish provides a low-glare corrosion-resistant exterior consistent with the working finish of most hunting and tactical Mossberg configurations. At 5.882 inches overall with a 2.125-inch center spread between the two middle mounting holes the rail provides sufficient mounting surface for full-size scopes compact red dots and multi-accessory setups on post-1997 Mossberg 500 590 835 930 and 935 receivers. Both #6 and #8 hex head screws are included to accommodate the screw size variation found across compatible Mossberg receivers along with a wrench for a complete tool-included installation. EGW recommends 20 inch-lbs of torque with a drop of blue Loctite for a secure vibration-resistant mount that holds zero through repeated firing. EGW Mossberg 500 Scope Mount Specifications Manufacturer: EGW Model: Mossberg 500 Scope Mount Compatibility: Mossberg 500 590 835 930 935 (Post-1997) Material: 6061-T6 Extruded Aluminum Finish: Matte Black Overall Length: 5.882 in Center Spread: 2.125 in Mounting Hardware: #6 and #8 Hex Head Screws and Wrench Recommended Torque: 20 inch-lbs with Blue Loctite Made in USA: Yes