Maverick 88 Shotgun Deluxe Universal Shotgun Tri-Rail Barrel Mount / Mag Tube Mount (5 slot) Shotgun Tri-Rail Barrel Mount / Mag Tube Mount Complete with Tactical Flashlight Clamping Feature Each Rail Has (5 Slots) perfect for mounting a tactical laser tactical flashlight and sling mount. Works great wil all shotguns that have space to mount on mag tube & with shotgun magazine extensions. Fits Mossberg 500 Shotgun, Mossberg 590 Shotgun, Mossberg 930 SPX . Remington 870 Magnum Shotgun Winchester 1200 Defender, Winchester 1300 Defender, Ithaca Shotgun Model 37 Defense ect. MNT-BR005XL. Lifetime Warranty.