The Weaver No. 82 is machined to tight tolerances and to offer maximum base strength. The No. 82 one-piece base securely holds scope rings to the top of the rifle, resisting recoil. This top-mount is made from sturdy yet lightweight aluminum and has a gloss black finish. All mounting hardware is included for convenient installation.Specifications and Features:One-Piece Top-Mount Rifle BaseMaterial: AluminumFinish: Gloss BlackIncludes Custom-Hardened Fastening Screws for Mounting Fits: H&R 155H&R 157H&R SB2 Ultra (.22-250)H&R Topper 158C (1973+)New England Firearms Handy RifleNew England Firearms HornetNew England Firearms Huntsman Muzzleloader