Two-piece hammer for a firearm

Abstract

A hammer for use within a firing mechanism of a firearm includes a thumb portion removably coupled to a sear portion. The thumb portion includes a spur end to be engaged by a thumb of a user to cock the hammer to a firing position and a sear end having a sear mating end wall with a non-planar surface. The sear portion includes a triggering end to engage the sear of the firing mechanism, and a thumb end having a thumb mating end wall with a corresponding non-planar surface which mates with the non-planar surface of the sear mating end wall of the thumb portion. The thumb portion can then be removed from the sear portion without requiring decoupling of the sear portion from the remainder of the firing mechanism.

What is claimed is: 
     
         1 . A hammer for use within a firing mechanism of a firearm wherein the firing mechanism includes the hammer, a sear, sear spring, and a hammer strut, wherein the hammer comprises a thumb portion removably coupled to a sear portion,
 wherein the thumb portion includes a spur end configured to be engaged by a thumb of a user to cock the hammer to a firing position, and a sear end having a sear mating end wall defining a non-planar surface, and   wherein the sear portion includes a triggering end configured to engage the sear, and a thumb end having a thumb mating end wall defining a corresponding non-planar surface adapted to mate with the sear mating end wall of the thumb portion.   
     
     
         2 . The hammer in accordance with  claim 1  wherein the sear mating end wall and the thumb mating end wall interlockingly engage one another. 
     
     
         3 . The hammer in accordance with  claim 1  wherein the sear end includes a throughbore and the thumb end includes a threaded bore, wherein the throughbore and the threaded bore are aligned so as to receive a threaded fastener therein to secure the thumb portion to the sear portion. 
     
     
         4 . The hammer in accordance with  claim 1  wherein the spur end further includes one or both of a left extended wide spur portion and a right extended wide spur portion. 
     
     
         5 . The hammer in accordance with  claim 1  wherein the thumb portion is adapted to receive and display one or more ornamental features. 
     
     
         6 . The hammer in accordance with  claim 1  wherein:
 a) the thumb portion includes a first sidewall and an opposing second sidewall wherein the sear mating end wall extends between the first and second sidewalls, wherein the sear mating end wall comprises:
 i) a first end segment extending inwardly from the first sidewall toward the second sidewall; 
 ii) a second end segment extending inwardly from the second sidewall toward the first sidewall; 
 iii) third, fourth and fifth contiguous wall segments extending from the first end segment to the second end segment, wherein the third wall segment forms a concave nodule extending inwardly from the first end segment, the fourth wall segment forms a convex recess, and the fifth wall segment forms a linear portion between the fourth wall segment and the second end segment; and 
 
 b) the sear portion includes a first sidewall and an opposing second sidewall wherein the thumb mating end wall extends between the first and second sidewalls, wherein the thumb mating end wall comprises:
 i) a first end segment extending inwardly from the first sidewall toward the second sidewall; 
 ii) a second end segment extending inwardly from the second sidewall toward the first sidewall; 
 iii) third, fourth and fifth contiguous wall segments extending from the first end segment to the second end segment, wherein the third wall segment forms a convex recess dimensioned to receive the concave nodule formed by the third wall segment of the sear mating end wall, the fourth wall segment forms a concave nodule dimensioned to be received within the convex recess formed by the fourth wall segment of the sear mating end wall, and the fifth wall segment forms a linear portion between the fourth wall segment and the second end segment. 
 
 
     
     
         7 . The hammer in accordance with  claim 1  wherein the thumb portion is configured to be removable from the sear portion without requiring decoupling of the sear portion from the remainder of the firing mechanism.