Monolithic Polymer Weapon Receiver for Low-Cost Modular Assembly
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Solution Overview
Problem
Traditional weapon receivers made of steel or light alloys are costly, require numerous production steps, and have high assembly complexity, while existing polymer alternatives lack durability, modularity, and ergonomic flexibility.
Innovation Solution
A single polymer body weapon assembly with an internal cavity for mold sliding cores, interchangeable grips, and a modular design that eliminates internal metallic structures, incorporating metal inserts only for legal requirements, and features like metal pins and molded plates for stress distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional steel or light alloy materials are used for the receiver, then excellent technical performance is achieved, but high cost and high production cost occur
Solution Approach 1:
The patent changes the material parameter from traditional steel/light alloy to polymer composite material. The receiver is manufactured using polymer injection molding process, which significantly reduces production cost and complexity while maintaining structural integrity through optimized polymer formulation and molding parameters
Solution Approach 2:
The patent adopts a cost-effective polymer material instead of expensive steel or light alloy. The polymer receiver achieves adequate durability for firearm application at a fraction of the material and manufacturing cost, making the weapon more economically viable
2Reliability
If conventional receiver construction with multiple parts is used, then functional requirements are met, but complex assembly process occurs
Solution Approach 1:
The patent merges multiple separate components (receiver body, magazine well, trigger guard, sight bases) into a single monolithic polymer receiver. This integration eliminates the need for assembling multiple metal parts, reducing assembly complexity while maintaining all necessary functional features through molded-in design elements
Solution Approach 2:
The polymer receiver performs multiple functions simultaneously: structural support, magazine housing, trigger guard formation, sight mounting, and recoil absorption. This multi-functionality is achieved through the monolithic design that incorporates all these features in one component, eliminating the need for separate parts
3Adaptability or versatility
If stock and receiver are assembled separately, then manufacturing flexibility is maintained, but assembly time and production cost increase
Solution Approach 1:
The patent combines the stock and receiver into a single monolithic polymer body through injection molding. This integration eliminates the assembly step between stock and receiver, significantly improving production efficiency while maintaining manufacturing flexibility through modular design options and customizable molding parameters
Data Source
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AI summary
A portable weapon assembly comprising a receiver made in a single polymer body without any inner metallic structural element; said assembly having an inner cavity.