Streamlight REM 870 Rail/AdapterSpecifications: Color: Black Light Source Type: LED Material: Polymer Included Components: Remington 870 Tactical Flashlight Mount Item Weight: 0.01 OuncesCompatible with:Streamlight TLR-1 Weapon Light SeriesStreamlight TLR-2 Weapon Light SeriesStreamlight TLR-3 Weapon Light SeriesStreamlight TLR-4 Weapon Light SeriesStreamlight TLR-7 Weapon Light SeriesStreamlight TLR-8 Weapon Light SeriesStreamlight TLR-9 Weapon LightStreamlight TLR-10 Weapon LightStreamlight TLR-VIR Pistol Mounted Light