Fast, Easy Operation; Hardened For DurabilityExtended, carbon steel bolt handle is 1⁄4" longer than the factory part, making it fast and easy to grasp. Carbon steel, recoil rod is polished, hardened, then coated with a proprietary finish to reduce friction and build-up of fouling. Recoil rod spring is cryogenically treated for improved stability and longer service life. Drops-in without fitting.SPECS: Carbon steel, matte finish. Fits Ruger® 10/22®.