Folded Feed Lips for Firearm Magazine Reinforcement
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Solution Overview
Problem
Conventional firearm magazines are prone to feed lip deformation due to stress from cartridges and physical abuse, leading to reduced effectiveness and potential failure, which can result in misfires or malfunctions.
Innovation Solution
The magazine features folded feed lips that are reinforced by welding and designed to maintain consistent spacing, reducing the likelihood of deformation and enhancing the magazine's ability to retain cartridges and withstand physical stresses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional feed lips are used, then the magazine structure is simple, but the feed lips deform under stress and physical abuse
Solution Approach 1:
The feed lip is divided into multiple segments or sections that can be independently reinforced. The folded portion creates distinct structural zones along the feed lip, allowing each segment to bear specific stresses differently, thereby preventing overall deformation while maintaining structural integrity.
Solution Approach 2:
The feed lip is folded back onto itself, adding a dimensional feature that creates a multi-layered structure. This folding introduces a new spatial dimension to the feed lip design, transforming a flat, two-dimensional component into a three-dimensional structure with enhanced strength and deformation resistance.
2Reliability
If the feed lips are reinforced with folded portions, then deformation is reduced, but the manufacturing process becomes more complex
Solution Approach 1:
The feed lip is pre-folded and pre-reinforced during the manufacturing process before the magazine is assembled. This preliminary structural modification ensures that the feed lip has enhanced strength and deformation resistance built-in from the start, improving reliability without requiring complex post-manufacturing repairs or reinforcements.
3Object-affected harmful factors
If the feed lips are made more robust to withstand impact, then resistance to physical abuse improves, but the magazine weight increases
Solution Approach 1:
The folded portions of the feed lip create curved, arc-shaped structural elements rather than straight, rigid segments. These curved geometries provide enhanced strength and impact resistance through distributed stress patterns, while using less material and creating a more efficient structural form that minimizes weight increase.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The folded feed lips provide increased strength and reliability, preventing warping and deformation, ensuring consistent cartridge retention and proper feeding into the firearm chamber.
Implementation Method 1
The first feed lip is folded toward the interior portion of the magazine and operable, in combination with a second feed lip, to retain the one or more cartridges in the magazine
Data Source
AI summary
A magazine for use in a firearm includes first and second feed lips having folded portions 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.