This Weaver multi-slot weaver-style base is just what you need for your rifle. These bases are constructed of aluminum so they won't add much weight to your rifle, but they are strong enough to withstand the heaviest recoil. The multiple slots provide you with plenty of space for mounting optics and allow you to position your scope for optimum eye relief. Specifications: - base type: 1 piece base - material: aluminum - style: Weaver - finish: matte black fits: - Remington 870, 11-87 notes: mounting hardware included.