Firearm Retention Lever and Receiver for Intuitive Holster Release

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Solution Overview

Problem

Existing firearm holster retention devices require unnatural positioning or additional hand movements to release the gun, making them ergonomically incorrect and unintuitive, especially in high-stress situations.

Innovation Solution

A retention device with a latching lever mounted to the trigger guard and a latching receiver that allows the firearm to be secured and released through natural hand movements, utilizing a pivot mechanism and spring biasing for easy engagement and disengagement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If existing retention devices engage with common gun features such as trigger guard or ejection port, then retention function is achieved, but release mechanism requires unnatural positioning or additional hand movement

Engineering Contradiction:

Improveease of firearm releaseVSAvoidcomplexity of release mechanism

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The retention device allows the firearm itself to participate in the release mechanism. The trigger guard or ejection port features of the firearm are utilized as integral parts of the release system, eliminating the need for separate manual manipulation of retention components. When the trigger is pulled or the ejection port is accessed, this naturally releases the firearm from the holster.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The release function is merged with existing firearm operations. The retention device combines the holster retention function with the firearm's trigger mechanism or ejection port, so that a single action (trigger pull or ejection port access) simultaneously serves both firearm operation and holster release purposes.

Inventive Principle:

Principle #5Merging (Combining)

2Ease of operation

If retention devices are placed on common firearm features, then retention is achieved, but release mechanism is neither ergonomically correct nor intuitively placed

Engineering Contradiction:

Improveergonomic placement of release mechanismVSAvoidreliability of quick removal in high stress situation

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The firearm's own features (trigger guard, ejection port) serve as the release mechanism, eliminating the need for separately placed retention components. This ensures the release mechanism is both ergonomically integrated with the firearm and intuitively accessible during high-stress situations.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

Instead of placing the release mechanism on the holster and requiring manual manipulation of the holster, the invention inverts the approach by using the firearm's own features to release from the holster. This reversal makes the release mechanism inherently ergonomic and intuitively placed on the firearm itself.

Inventive Principle:

Principle #13The other way round (Inversion)

3Reliability

If multiple retention devices are required for redundancy, then safety is improved, but device complexity and ease of operation are compromised

Engineering Contradiction:

Improvesafety through retention redundancyVSAvoidease of firearm removal

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The retention device provides multiple retention functions through a single mechanism. By engaging with universal firearm features like the trigger guard or ejection port, one device achieves redundant retention while maintaining simple operation through the firearm's existing operational modes.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

Multiple retention functions are merged into a single integrated device that utilizes the firearm's own features. This combination achieves the safety of multiple retention points without requiring multiple separate devices, preserving ease of operation through unified control.

Inventive Principle:

Principle #5Merging (Combining)

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 solution provides ergonomic and intuitive release of the firearm from the holster, enhancing safety and ease of use by allowing quick removal without complex mechanisms.

Implementation Method 1

a latching lever mountable to a trigger guard of the firearm... The latching lever is pivotable about a first pivot point between a first engaging position and a second release position

Methodology Applied

Scientific EffectMechanical Advantage: Mechanical Advantage

Implementation Method 2

a latching receiver configured to receive and retain the firearm. The latching receiver includes a latch pivotable about a second pivot point between a firearm engaging position and a firearm release position

Methodology Applied

Scientific EffectMechanical Advantage: Mechanical Advantage

Data Source

PatentUS12422218B2On-board and holster side firearm retention

Publication Date: 2025.09.23 KRETSINGER SHANE ALLAN

AI summary

A retention device for a firearm includes a latching lever mountable to a trigger guard of the firearm, and a latching receiver configured to receive and retain the firearm. The latching lever is pivotable about a first pivot point between a first engaging position and a second release position. The latching receiver is configured to receive and retain the firearm, and includes a latch pivotable about a second pivot point between a firearm engaging position and a firearm release position. The latch has a protrusion configured to engage and retain the firearm when the latching lever is in the first engaging position.