Reciprocating Magazine Release for Ambidextrous Firearm Ejection

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Solution Overview

Problem

Firearms are typically designed for magazine ejection using either the right or left thumb, but not both, limiting ambidextrous functionality.

Innovation Solution

A Reciprocating Ambidextrous Magazine Release System (RAMRS) that allows magazine ejection with either thumb or a pinching motion, and can be easily installed as a 'Drop-In' modification without altering the firearm's original configuration.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a firearm is designed with a single-sided magazine release (right or left thumb only), then the device complexity is reduced and manufacturing is simpler, but the adaptability and ease of operation are limited for ambidextrous users

Engineering Contradiction:
Improveambidextrous functionalityVSAvoidmechanism complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The magazine release system is segmented into two independent actuators: a right thumb actuator and a left thumb actuator. Each actuator can independently release the magazine, allowing ambidextrous operation. The segmentation of functions into separate components resolves the contradiction by providing versatility without requiring a completely complex redesign of the entire release mechanism.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The magazine release system is designed with multi-functionality to accommodate different user preferences and needs. The same system can be operated by either the right thumb, left thumb, or a combination of both thumbs, making it universal for right-handed, left-handed, and ambidextrous users. This multi-functional design improves adaptability while maintaining reasonable complexity through shared mechanical components.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Ease of operation

If a reciprocating cam mechanism is added to enable ambidextrous operation, then the ease of operation is improved, but the device complexity and manufacturing difficulty increase

Engineering Contradiction:
Improvemagazine ejection easeVSAvoidinstallation complexity
Core Design Contradiction:
Ease of operationVSEase of manufacture

Solution Approach 1:

The reciprocating cam mechanism is nested within the existing magazine release structure. The cam is positioned between the right and left thumb actuators, and its reciprocating motion is integrated into the existing release pathway. This nesting approach allows the complex function to be added without requiring complete disassembly or major modifications to the firearm, improving ease of manufacture and installation.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The reciprocating cam acts as an intermediary mechanism that translates the action of either thumb actuator into magazine release. When either the right or left thumb actuator is pressed, the cam reciprocates to engage the magazine release latch. This intermediary component simplifies the overall operation by providing a unified mechanical pathway that handles both ambidextrous inputs, while the cam itself can be manufactured as a single piece or simple assembly.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Ease of operation

If the magazine release system is designed to accommodate users of varying hand strength, then the ease of operation is improved, but the device complexity increases

Engineering Contradiction:
Improveaccessibility for varying hand strengthVSAvoidsystem configuration
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The magazine release system incorporates dynamic elements including spring-loaded actuators and a reciprocating cam mechanism that can adapt to different input forces. The springs provide assistance for users with weaker hand strength, while the cam mechanism efficiently translates even small forces into effective magazine release. This dynamic design allows the same system to accommodate a wide range of hand strengths without requiring multiple configurations or adjustable components.

Inventive Principle:
Principle #15Dynamics

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

Enables ambidextrous magazine ejection with ease, accommodating users of varying hand strength and adaptability to different firearm types.

Implementation Method 1

A spring is nestled into a spring divot of the reciprocating cam bracket and biases the right thumb actuator in a First Direction

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS12455129B2Reciprocating ambidextrous magazine release system
Publication Date: 2025.10.28 KIM KYUNG TAE
  • US12455129B2 patent drawing
  • US12455129B2 patent drawing
  • US12455129B2 patent drawing

AI summary

A firearm ambidextrous magazine release utilizing a reciprocating action mechanism. In some embodiments a firearm ambidextrous magazine release configured to be utilized in Glock type firearms.