Modular handgun grip

Abstract

Provided is a modular handgun or a grip module for a modular handgun having a separable fire control unit frame. The grip module includes a main grip module portion configured with a cavity configured to receive at least a portion of the fire control unit frame and a handgrip portion configured to receive an ammunition magazine. A secondary grip module portion is attachable to the main portion and has a rearward end configured with at least one projection configured to engage with a recess at a forward end of the fire control unit frame.

What is claimed is: 
     
         1 . A grip module for a modular handgun having a separable fire control unit frame, the grip module comprising:
 a main grip module portion configured with a cavity configured to receive at least a portion of the fire control unit frame and a handgrip portion configured to receive an ammunition magazine, and   a secondary grip module portion attachable to the main portion having a rearward end configured with at least one projection configured to engage with a recess at a forward end of the fire control unit frame.   
     
     
         2 . The grip module of  claim 1 , wherein the secondary grip module portion provides a recoil spring cover. 
     
     
         3 . The grip module of  claim 1 , wherein the secondary grip module portion includes an accessory attachment rail. 
     
     
         4 . The grip module of  claim 1 , wherein the main and secondary grip module portions are attachable to each other with a sliding engagement. 
     
     
         5 . The grip module of  claim 4 , wherein the sliding engagement is longitudinal. 
     
     
         6 . The grip module of  claim 1 , wherein the sliding engagement includes a channel in at least one of the main grip module portion and the secondary grip module portion. 
     
     
         7 . The grip module of  claim 1 , wherein the main grip module portion and secondary grip module portion are attached together with a threaded fastener. 
     
     
         8 . The grip module of  claim 1 , comprising a plurality of secondary grip module portions of different length. 
     
     
         9 . The grip module of  claim 1 , wherein the main grip module portion includes at least one transverse opening positioned to align with a transverse opening in the fire control unit frame to receive an assembly pin to secure the fire control unit frame to the grip module. 
     
     
         10 . A modular handgun, comprising:
 a fire control unit frame having at least one recess at a forward end;   a grip module comprising:
 a main grip module portion, that includes a cavity configured to receive the frame and a handgrip portion that receives an ammunition magazine, and 
 a secondary grip module portion attachable to the main grip module portion and having a rearward end configured with at least one projection configured to engage with the recess of the frame when assembled. 
   
     
     
         11 . The grip module of  claim 10 , wherein the secondary grip module portion provides a recoil spring cover. 
     
     
         12 . The grip module of  claim 10 , wherein the secondary grip module portion includes an accessory attachment rail. 
     
     
         13 . The grip module of  claim 10 , wherein the main and secondary grip module portions are attachable to each other with a sliding engagement. 
     
     
         14 . The grip module of  claim 13 , wherein the sliding engagement is longitudinal. 
     
     
         15 . The grip module of  claim 13 , wherein the sliding engagement includes a channel in at least one of the main grip module portion and the secondary grip module portion. 
     
     
         16 . The grip module of  claim 10 , wherein the main grip module portion and secondary grip module portion are attached together with a threaded fastener. 
     
     
         17 . The grip module of  claim 10 , comprising a plurality of secondary grip module portions of different length. 
     
     
         18 . The grip module of  claim 10 , wherein the main grip module portion includes at least one transverse opening positioned to align with a transverse opening in the fire control unit frame to receive an assembly pin to secure the fire control unit frame to the grip module.