Ambidextrous Magazine Ejection and Control Group
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Solution Overview
Problem
Current firearms require multiple time-consuming steps to replace an empty magazine with a loaded one, and existing control features are often limited to one side, making them difficult to use in critical situations, especially for non-ambidextrous users or those with limited access.
Innovation Solution
A firearm design with ambidextrous magazine release, bolt catch engagement, and charging handle operation, featuring a magazine release mechanism, bolt catch engage and release mechanisms, and a charging handle with grip wings that allow operation from either side, enabling automatic ejection of spent magazines and easy access to controls without modifying the lower receiver.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual magazine replacement steps are used, then the firearm can be reloaded, but the process is time-consuming and reduces productivity
Solution Approach 1:
The magazine system is designed to automatically detect when the magazine is empty and eject it without user intervention. The follower mechanism automatically engages the magazine catch when ammunition is depleted, triggering automatic ejection. This self-service approach eliminates the need for manual checking and removal steps.
Solution Approach 2:
The automatic ejection mechanism is prepared in advance by positioning the follower and magazine catch components ready to engage. When the magazine becomes empty, the pre-positioned components automatically trigger ejection, eliminating the need for reactive manual intervention.
2Ease of operation
If control features are placed on one side only, then the device complexity is reduced, but the ease of operation deteriorates for non-ambidextrous users
Solution Approach 1:
The magazine catch and release mechanism are positioned asymmetrically within the lower receiver, allowing automatic engagement from either side. The catch is centrally located but biased to engage with followers that can approach from left or right, enabling ambidextrous operation without duplicating entire control systems.
Solution Approach 2:
The magazine catch mechanism serves multiple functions: it can be automatically engaged by followers from either side, manually released from both left and right sides, and works with different magazine configurations. This multi-functionality allows ambidextrous operation without requiring separate control systems for each side.
3Productivity
If automatic magazine ejection is implemented, then productivity is improved, but the device complexity increases
Solution Approach 1:
The magazine ejection function is merged with the existing follower and magazine catch mechanisms. The follower that already pushes cartridges upward is also configured to engage the magazine catch when ammunition is depleted. The magazine catch, originally designed for manual operation, is enhanced to enable automatic ejection, combining multiple functions into existing components.
Solution Approach 2:
The follower serves dual purposes: feeding cartridges to the chamber and detecting when the magazine is empty to trigger ejection. The magazine catch also performs multiple functions: manual release, automatic engagement by the follower, and controlling magazine retention. This multi-functionality reduces the need for separate dedicated ejection components.
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
This design enhances reloading speed, ensures easy access to controls on both sides, reduces the risk of accidental loading, and prevents double-feeding jams, while being easily retrofittable to standard firearms without altering the lower receiver.
Implementation Method 1
a follower spring positioned between the follower and the bottom door, wherein the follower spring provides force to bias the follower and the bottom door so that the follower moves up the side wall
Data Source
AI summary
A firearm comprising: (i) an ammunition magazine which automatically ejects from the lower receiver of the firearm when the ammunition magazine is spent; (ii) a control group comprising a magazine release mechanism for releasing the magazine catch so that the ammunition magazine is detachable from the lower receiver, a bolt catch engage mechanism for engaging the bolt catch with the bolt carrier and retaining the bolt carrier in the retracted position, and a bolt catch release mechanism for releasing the bolt catch from the bolt carrier and allowing the bolt carrier to move forward, wherein the control group components can be operated by the user on either the left side or right side of the firearm; and (iii) optionally, a charging handle which can be operated by the user on either the left side or right side of the firearm.