Quad Stack Firearm Magazine With Transition Region
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Solution Overview
Problem
Existing detachable magazines for firearms have limited capacity without increasing the overall length, which can lead to frequent reloads and a higher number of magazines required for a full loadout.
Innovation Solution
A detachable magazine design that incorporates a quad stack region and a transition region within a magazine body, allowing for four rows of cartridges to be stored while maintaining compatibility with standard AR-15 upper receivers, and featuring a follower assembly that travels through both regions to facilitate feeding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the magazine capacity is increased, then the number of cartridges stored increases, but the overall length of the magazine increases
Solution Approach 1:
The patent applies quad-stack configuration where cartridges are arranged in four parallel rows stacked vertically, transitioning from traditional single-stack or double-stack arrangements. This dimensional reorganization allows significantly higher capacity within the same length constraint by utilizing vertical stacking space more efficiently. The transition region and follower assembly are designed to accommodate this four-row configuration while maintaining compatibility with standard AR-15 upper receivers.
2Quantity of substance
If the magazine capacity is increased, then the number of cartridges stored increases, but the device complexity increases
Solution Approach 1:
The magazine is segmented into distinct functional regions: the quad-stack region for high-capacity storage, the transition region for geometry change, and the feed region for cartridge delivery. This segmentation allows each region to be optimized independently, managing complexity by breaking down the overall system into manageable sections with specific functions.
Solution Approach 2:
The transition region acts as an intermediary between the quad-stack region and the feed region, mediating the geometric transition from four parallel rows to the feeding configuration. The follower assembly serves as a mediator that travels through both regions, facilitating the complex motion required to feed cartridges from the quad-stack arrangement while maintaining reliability.
3Quantity of substance
If the magazine capacity is increased, then the number of cartridges stored increases, but the feeding reliability may deteriorate
Solution Approach 1:
The transition region is pre-configured with specific geometric features and angles that prepare cartridges for feeding before they reach the feed region. The follower assembly is designed with preliminary positioning features that ensure cartridges are correctly oriented and spaced as they transition from the quad-stack region, preventing feeding issues before they occur.
Solution Approach 2:
The magazine utilizes controlled parameter changes in the transition region, including angular transitions and dimensional variations, to smoothly transform the cartridge arrangement from four parallel rows to the feeding configuration. These parameter changes are carefully designed to maintain cartridge integrity and feeding reliability throughout the transition.
Data Source
AI summary
A detachable magazine for firearms is provided that includes a magazine body having a quad stack region and a transition region and a follower assembly having a follower body, the follower body configured to travel through both the quad stack region and the transition region. The detachable magazine has canted rear walls to accommodate cartridges with a range of lengths.