Extruded Firearm Receiver Barrel Alignment and Modular Maintenance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current firearm receivers are cumbersome to disassemble and maintain, requiring significant time and effort to remove components like the barrel and magazine tube, which hampers efficiency and convenience in maintenance and component replacement.
Innovation Solution
An extruded aluminum receiver with a longitudinal bore, barrel extension key, and barrel nut system that aligns and secures the barrel, along with a modular design allowing easy detachment and replacement of components, such as the fire control group and stock, facilitated by machined features like grooves for accessory rails and a cartridge ejection opening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional firearm receivers are used with separate barrel and magazine tube assemblies, then components can be removed and replaced, but the disassembly and maintenance process takes significant time and effort
Solution Approach 1:
The receiver is designed as an extruded structure with integrated barrel and magazine tube positioning features, allowing the firearm to be segmented into modular components that can be quickly detached and reattached without complex disassembly procedures
Solution Approach 2:
The extruded receiver incorporates pre-formed barrel recesses and magazine tube positioning features during manufacturing, eliminating the need for time-consuming field disassembly and preparation steps during maintenance operations
2Manufacturing precision
If traditional receivers require multiple secondary components to be removed for barrel replacement, then proper alignment can be achieved, but the complexity of the disassembly process increases
Solution Approach 1:
The barrel alignment features and magazine tube positioning features are merged into the extruded receiver structure itself, eliminating the need for separate alignment components and reducing the number of parts that must be manipulated during barrel replacement
Solution Approach 2:
The extruded receiver serves multiple functions simultaneously: it provides structural support, defines barrel positioning through integrated recesses, and guides magazine tube installation, thereby reducing overall device complexity while maintaining precision
Data Source
AI summary
A system and method are provided for a magazine-fed, pump-action firearm. The system comprises an extruded receiver having a longitudinal bore extending along the length of the extruded receiver, where the longitudinal bore forms a first opening in the extruded receiver for receiving a barrel, and a second opening in the extruded receiver for receiving a stock, a barrel extension key extending inward from an interior surface of the longitudinal bore, the barrel extension key configured to index and position the barrel, and a barrel nut configured to couple with the first opening of the extruded receiver and maintain the barrel substantially inside of the longitudinal bore between the barrel extension key and the barrel nut. The method includes extruding a receiver having a longitudinal bore, machining features on an exterior surface of the receiver, machining transverse openings in the receiver, and providing a barrel nut.