Knurled surface gives extra purchase to easily cock external-hammer rifles equipped with low mount scopes. Just slip over the hammer spur and clamp in place with Allen screws. May be right- or left-hand mounted. Hammer Exension Fitting Guide Mfg: Uncle Mikes SPECS: Steel, matte black finish. 1 1/4" (3cm) long, 3/8" (9.3) diameter. 2450 fits Win. 94 and Big Bore, Ithaca X-Caliber, and Henry lever action rimfire rifles. 2451 fits Win. 94/22. 2452 fits Marlin lever action 1957-1982. 2456 fits H&R Topper, N.E.F. Handi Rifle, Ruger
