Firearm-Mounted Flash-Bang Hook for One-Handed Deployment

Solution Overview

Problem

Flash bang grenades require two hands to operate, leaving the user unprotected during deployment, as they need one hand to pull the pin and the other to throw the grenade, making it impossible to simultaneously hold a firearm.

Innovation Solution

A hook attached to a firearm allows single-handed deployment of flash bang grenades by snagging the pin with one hand, keeping the firearm ready for defense.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If two hands are used to operate the flash bang grenade (one to pull the pin, one to throw), then the grenade deployment is reliable and easy to operate, but the user is left unprotected and cannot hold a firearm simultaneously

Engineering Contradiction:

Improvegrenade deploymentVSAvoiduser protection

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The hook attached to the firearm serves as an intermediary tool that enables the user to pull the pin with one hand while maintaining grip on the firearm with the other hand. The hook acts as a mediator between the user's limited hand availability and the grenade deployment requirement, resolving the contradiction by allowing reliable grenade operation without sacrificing firearm control or personal protection

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If the user holds the firearm with one hand and deploys the grenade with the other, then the user remains protected, but the grenade deployment becomes more complex and requires coordination

Engineering Contradiction:

Improveuser protectionVSAvoidgrenade deployment

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The hook attached to the firearm serves as an intermediary tool that enables the user to pull the pin with one hand while maintaining grip on the firearm with the other hand. The hook acts as a mediator between the user's limited hand availability and the grenade deployment requirement, resolving the contradiction by allowing reliable grenade operation without sacrificing firearm control or personal protection

Inventive Principle:

Principle #24Intermediary (Mediator)

3Ease of operation

If the user puts down the firearm to deploy the grenade with two hands, then the grenade deployment is easier and more reliable, but the user is temporarily unprotected

Engineering Contradiction:

Improvegrenade deploymentVSAvoiduser vulnerability

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The hook attached to the firearm serves as an intermediary tool that enables the user to pull the pin with one hand while maintaining grip on the firearm with the other hand. The hook acts as a mediator between the user's limited hand availability and the grenade deployment requirement, resolving the contradiction by allowing reliable grenade operation without sacrificing firearm control or personal protection

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS20250290722A1Flash bang grenade hook and method of use

Publication Date: 2025.09.18 ICARUS PRECISION LLC

AI summary

A hook for deploying a pin-and-lever detonation device, such as a flash bang grenade, and a method for use of the hook, is disclosed. The hook includes a base for attaching the hook to the side of a firearm, such as at a hand guard, grip, body, or accessory rail. It further includes an arm extending substantially laterally from the base. A recess is defined between the base and the arm, structured to receive a pull-ring of the pin-and-lever detonation device and provide leverage for a user pulling the pull-ring. A lip is formed at an end of the arm, structured to curve away from the arm and guide a pull-ring of the pin-and-lever detonation device into the recess. The disclosed hook enables an operator to deploy a grenade one-handed while simultaneously keeping his firearm readily available and covering his own person.