Mossberg's Picatinny/scope mount allows you to equip your drilled/tapped firearm with the ability to mount accessories, optics, and lights. This model has a black finish and is compatible with Mossberg 500/505/510/590/590A1/535/835/930/935.Equip your firearm with the ability to mount accessories, optics, and lights with this picatinny/scope mount. Fits drilled and tapped shotguns - 500, 505, 510, 590, 590A1, 535, 835, 930, 935.