The PRMO Mossberg 500 Rail System offers a superior mounting solution for your Mossberg accessories. The Durable and lightweight reinforced polymer construction gives you rail sections at the 3, 6 and 9 o'clock positions for you to add pistol grips, lights, lasers, whatever you desire to your trusted Mossberg Shotgun. Quick and easy installation allows for any user to apply this to their shotgun without the need for a gunsmith.Features: Enables Three Picatinny RailsMount Picatinny Based Accessories on Your ShotgunState-of-the-Art Ergonomic DesignDurable, Hardwearing & Lightweight constructionQuick & Easy InstallationNo Gunsmith RequiredProvides Appropriate Thermal InsulationConstructed from Reinforced Polymer Composite Palmetto State Armory is your top choice for tactical accessories and gear from Fab Defense and other top manufacturers!