Folded Firearm Magazine Feed Lips Reinforcement
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Solution Overview
Problem
Conventional firearm magazines are prone to deformation and failure due to stress from cartridges and physical abuse, leading to inconsistent spacing and reduced effectiveness in retaining followers and cartridges, which can result in misfires or malfunctions.
Innovation Solution
The magazine features folded feed lips that are reinforced with welds, reducing the likelihood of deformation and improving retention of cartridges and followers by redistributing force effectively, and a method for forming these folded feed lips to enhance strength and consistency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional feed lips are used in magazines, then the magazine structure is simple and easy to manufacture, but the feed lips are prone to deformation and failure under stress from cartridges and physical abuse
Solution Approach 1:
The feed lip is divided into multiple segments or sections that can be independently reinforced. The patent applies segmentation by creating multiple reinforcement elements distributed along the feed lip structure, allowing each segment to resist deformation locally while maintaining overall simplicity
Solution Approach 2:
The feed lip combines base material with reinforcement elements to create a composite structure. The patent implements this by integrating reinforcement ribs, welds, or layered constructions that enhance durability without completely redesigning the feed lip geometry
2Strength
If the feed lips are reinforced with welds and folds, then the strength and resistance to deformation increase, but the manufacturing complexity and process difficulty increase
Solution Approach 1:
The reinforcement features are prepared in advance during the forming process rather than added as separate steps. The patent applies preliminary action by pre-forming folds, ribs, and reinforcement geometries as integral parts of the feed lip during initial fabrication, reducing later assembly complexity
Solution Approach 2:
Multiple reinforcement functions are merged into single structural features. The patent combines strengthening, stiffening, and deformation resistance into integrated reinforcement elements that serve multiple purposes simultaneously, reducing the total number of separate manufacturing operations
3Reliability
If the feed lips are made more robust to withstand impact forces, then the magazine can withstand physical abuse and repeated use, but the weight of the magazine increases
Solution Approach 1:
Reinforcement is applied only where needed to withstand specific stresses. The patent implements local quality by placing reinforcement elements at critical locations on the feed lip where impact forces are most likely to occur, rather than uniformly thickening the entire structure
Solution Approach 2:
Curved or folded geometries are used to distribute impact forces more effectively. The patent applies curvature by forming rounded reinforcement profiles and folded structures that redirect impact forces away from critical weak points, providing enhanced durability without proportional weight increases
Data Source
AI summary
A magazine for use in a firearm includes first and second feed lips that are folded to reinforce the strength of the respective feed lips. In some embodiments, the strength of the feed lips may be further reinforced by applying one or more welds. The feed lips are capable of withstanding greater amounts of force to avoid failure. Accordingly, the disclosed magazine and method for providing the magazine reduce the “spring back” effect present in conventional magazine feed lips. This removes the additional step of having to over-form the feed lips that is performed when forming a magazine having conventional feed lips. The result is a method for providing a magazine with folded feed lips that are capable of withstanding greater amounts of force to avoid warping, deforming, or other failure, wherein the method for forming the magazine is more accurate, more consistent, and involves fewer steps.