Patent ID: 6061944
Filing Date: 2000-05-16
Classification: F41A

Abstract:
A method for modifying a rimfire rifle having a two-piece bolt with a detachable rimfire bolt head assembly comprising the steps of:removing the bolt from the rifle;removing the rimfire bolt head assembly from a remainder of the bolt;attaching a centerfire bolt head assembly to the remainder of the bolt in place of the rimfire bolt head assembly, the centerfire bolt head assembly includinga bolt head having a central longitudinal axis, a cartridge end, a striker end, and an exterior size and configuration identical to a size and configuration of a rimfire bolt head of the rimfire bolt head assembly,a bore provided along the central longitudinal axis of the bolt head, the bore including an enlarged recess adjacent the striker end,a one-piece solid centerfire firing pin located in the bore of the bolt head which is longer than the bore, the centerfire firing pin including a head adjacent the striker end which is received in the recess, anda spring located in the recess and around the centerfire firing pin between the head and a bottom of the recess; andreplacing the bolt in the rifle.