This Henry MLOK Aluminum Handguard is 13.25" long (blocks mag tube loading port) and fits *most* Henry rifles chambered in 45-70 Govt, 30-30 Win, 38-55, 44 Mag, 357 Mag, 45 Colt non-barrel (Side Loading, X Models, Big Boy Models, All Weather Models). Does not fit barrel band models, octagon barrels or 22" barrel lengths with the longer forearm mounting point.