Fits: Most 12 GA Mossberg 500/535/590/835, Maverick 88, Remington 870, and Winchester 1200/1300/SXP ShotgunsDoes Not Fit: Remington 870 DM & Mossberg 590MNote: Mossberg forends require a 6 3/4 slide action tube, Maverick shotguns will also require the addition of a Mossberg 6 3/4 slide action tube.*The forend included in this package is compatible with: (1) Mossberg Shotguns with a removable forend, any Mossberg Shotgun newer than 2006 should be checked to insure that it has a removable forend. (2) Winchester Forend Tubes with a Minimum Length of 6 Inches are Required for use of this Product.Tactical Shotgun Picatinny Rail PackageOne Left 2 Picatinny RailOne Right 2 Picatinny RailPicatinny Rails Allow for Easy Installation of all Your Favorite AccessoriesBlank Inserts for When Rails are Not in UseTextured ForendVery Tough, yet Extremely LightweightDuPont Extreme Temperature Glass Reinforced PolymerManufactured in the USALimited Lifetime WarrantyWarning!!! Do Not Over Tighten ScrewsStripped Holes and Broken Screw Heads are NOT Covered Under the Warranty