Modular Handgun Grip Segmentation Polymer Metal Assembly
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Solution Overview
Problem
Existing modular handgun designs face challenges in manufacturing due to the need for precise clearances and rotary tool practices, especially when reproducing metallic grip modules without separate retention inserts.
Innovation Solution
A modular handgun design featuring a separable fire control unit frame with a two-part grip module, where the main portion is made of lightweight polymer and the secondary portion is made of durable metal, such as aluminum or steel, with projections that engage recesses in the frame for secure assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a metallic grip module is manufactured without a separate retention insert using conventional subtractive manufacturing techniques, then manufacturing complexity increases due to clearances and rotary tool practices, but structural strength is maintained
Solution Approach 1:
The grip module is divided into two separate portions: a polymer main portion and a metal secondary portion. This segmentation allows each part to be manufactured using optimal techniques (molding for polymer, subtractive manufacturing for metal) and then assembled together, avoiding the complexity of trying to manufacture the entire metallic grip module in one piece without retention inserts.
Solution Approach 2:
The grip module combines two different materials - polymer and metal - into a single functional assembly. The metal secondary portion provides the necessary structural strength and engagement features, while the polymer main portion provides the grip surface and overall structure, eliminating the need for complex single-material manufacturing.
2Adaptability or versatility
If a single serialized frame is assembled with different grip modules to provide modularity, then adaptability improves, but the need for secure connection and recoil force distribution requires complex retention mechanisms
Solution Approach 1:
The grip module is segmented into two portions with the metal secondary portion containing simplified engagement features (protrusions) that mate with the frame, eliminating the need for complex embedded retention inserts while maintaining secure connection and recoil force distribution.
Solution Approach 2:
By using composite construction with metal and polymer portions, the design achieves both modularity and structural integrity. The metal portion provides the necessary strength for frame engagement and recoil resistance, while the polymer portion allows for easy manufacturing and attachment to the metal section, simplifying the overall retention mechanism.
Data Source
AI summary
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.