Multi-Material Firearm Trigger With Interchangeable Finger Lever

Abstract

Disclosed is a multi-material firearm trigger having an upper portion configured to interact with at least one other component of a fire control mechanism and a finger lever portion attachable to the upper portion. The upper portion is formed by injection molding and the finger lever portion is formed from metal by material removal machining processes.

1 . A multi-material firearm trigger member, comprising:
 an upper portion configured to interact with at least one other component of a fire control mechanism, the upper portion being formed from a first material by injection molding; and   a finger lever portion attached to the upper portion, the finger lever portion being machined from a metal material, different from the first material, and having its exposed surfaces finished to correspond to the appearance of another visible metal part of a firearm in which the trigger member is installed.   
     
     
         2 . The trigger member of  claim 1 , wherein the upper portion is formed by metal injection molding (MIM) processes. 
     
     
         3 . The trigger member of  claim 2 , using steel material in the MIM process. 
     
     
         4 . The trigger member of  claim 1 , wherein the finger lever portion is attached to the upper portion with a threaded fastener. 
     
     
         5 . The trigger member of  claim 1 , wherein the upper portion and finger lever portion include engageable interface surfaces that, when attached, provide mechanical transfer of shear forces between the portions. 
     
     
         6 . The trigger member of  claim 5 , wherein the interface surfaces include a dovetail tenon and mortise. 
     
     
         7 . The trigger member of  claim 1 , wherein the finger lever portion is anodized aluminum.