Magwell Extension Locking Element for Damage-Free Installation
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Solution Overview
Problem
Existing magwell extensions often damage the firearm's surface, require modification, or are complicated to install, especially under field conditions, due to their design and attachment methods.
Innovation Solution
A magwell extension with a hollow body and a locking element that securely attaches to the firearm's magwell without surface damage, using a stop rail and a locking mechanism that biases the rim against the stop rail, allowing for easy and quick installation and removal without modification to the firearm.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a magwell extension is attached to guide the magazine, then magazine insertion is assisted and guiding is improved, but the attachment method may damage the firearm's surface or require modification
Solution Approach 1:
The locking element acts as an intermediary between the extension and the firearm. It engages with the rim of the magwell and the stop rail without directly fastening to the firearm surface, thereby providing secure attachment while avoiding surface damage or modification requirements.
Solution Approach 2:
The locking mechanism is extracted as a separate removable component rather than being integrated into the extension body. This allows the extension to be attached and detached without permanent modification to the firearm, and the locking element can be reused with different extensions.
2Reliability
If a secure locking mechanism is used to attach the extension, then the extension fit is improved, but the installation complexity increases
Solution Approach 1:
The attachment system is segmented into distinct functional components: the extension body, the locking element, the stop rail, and the rim engagement features. This segmentation allows each component to be optimized for its specific function while simplifying the overall installation process, as components can be independently manufactured and assembled in a straightforward sequence.
3Reliability
If a locking element is used to secure the extension, then the attachment security is improved, but the number of components and installation steps increases
Solution Approach 1:
Multiple functions are merged into the locking element: it provides lateral retention by engaging the stop rail, longitudinal positioning by engaging the rim, and structural support for the extension. This consolidation reduces the total number of components compared to using separate fasteners, retainers, and positioning elements.
4Ease of operation
If the extension is designed to be easily removable for field conditions, then the ease of operation is improved, but the attachment security may be compromised
Solution Approach 1:
The attachment system transitions from a static permanent connection to a dynamic reversible connection. The locking element can be easily disengaged from the stop rail and rim features, allowing rapid removal and reattachment in field conditions while maintaining secure attachment when engaged, as the same geometric features provide both easy release and strong retention.
Data Source
AI summary
A magwell extension is provided and configured to assist a user in inserting a cartridge magazine into the magwell of a firearm. The extension includes a hollow body enclosed on four sides and open at opposite ends. A coupling face defines a first of the ends and includes a pair of rails configured to engage the rim of the magwell. A stop rail extending from the coupling face lies perpendicular to the pair of rails. A locking element is configured to be coupled to the body with a portion extending from the first opening and beyond a plane defined by the coupling face. The locking element is configured to bias the rim of the magwell into secure engagement with the stop rail.