Firearm Handguard Mounting System with Integrated Receiver Shroud

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Solution Overview

Problem

Existing firearm handguards often fail to securely and precisely mount to firearms, leading to rotation and misalignment issues under excessive forces, which can affect accuracy and damage accessories, particularly on uniquely configured firearms like the MP5 where attachment points are limited.

Innovation Solution

A firearm mounting system featuring a handguard and receiver shroud integrated as a single piece with a mounting rail and plug system that engages ledges on the receiver for secure clamping, providing a rigid and consistent connection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If screws are used to secure the handguard to the firearm, then the handguard can be mounted to the firearm, but the handguard can rotate or slide under excessive forces

Engineering Contradiction:
Improvemounting strengthVSAvoidmounting reliability
Core Design Contradiction:
StrengthVSReliability

Solution Approach 1:

The mounting system is divided into multiple independent attachment points (first and second attachment features) distributed around the barrel. Each attachment feature includes its own fastener, providing redundant and distributed securing points rather than relying on a single screw connection, thereby preventing rotation and sliding under excessive forces.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different portions of the handguard are attached to different portions of the barrel at multiple locations. The attachment features are strategically positioned to provide localized securing points that collectively prevent rotational and sliding movements, ensuring stable mounting throughout the handguard-barrel interface.

Inventive Principle:
Principle #3Local quality

2Ease of operation

If the handguard rotates or misaligns on the firearm, then mounting is achieved, but the firearm accuracy decreases and accessories can be damaged

Engineering Contradiction:
Improvemounting easeVSAvoidalignment precision
Core Design Contradiction:
Ease of operationVSManufacturing precision

Solution Approach 1:

The handguard is divided into multiple attachable portions, each secured to a specific location on the barrel. This segmentation allows each portion to be precisely positioned and secured independently, maintaining overall alignment precision while simplifying the mounting process through modular assembly.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The attachment features are pre-configured with fasteners and positioning elements that guide proper alignment during assembly. This preliminary preparation ensures that when the handguard portions are attached to the barrel, they automatically achieve the correct orientation and alignment, preventing misalignment issues.

Inventive Principle:
Principle #10Preliminary action

3Ease of manufacture

If screws are used to secure the handguard, then mounting is achieved, but the screws can give way and slide under excessive forces

Engineering Contradiction:
Improvemounting simplicityVSAvoidattachment strength
Core Design Contradiction:
Ease of manufactureVSStrength

Solution Approach 1:

Instead of using a single screw connection, the system employs multiple attachment features with distributed fasteners around the barrel. This segmentation of the mounting system provides redundant attachment points that collectively withstand excessive forces, preventing any single fastener from giving way while maintaining manufacturing simplicity through standardized components.

Inventive Principle:
Principle #1Segmentation

4Adaptability or versatility

If the handguard is mounted on uniquely configured firearms like MP5 with limited attachment points, then mounting is difficult, but accessory mounting space is reduced

Engineering Contradiction:
Improvefirearm compatibilityVSAvoidaccessory mounting area
Core Design Contradiction:
Adaptability or versatilityVSArea of stationary object

Solution Approach 1:

The handguard system is designed with universal adaptability to fit various firearm configurations including uniquely configured firearms like the MP5. The modular attachment features can be positioned to utilize available space on different firearm types, providing multiple accessory mounting locations without reducing the available mounting area, as each attachment point serves both structural and accessory-mounting functions.

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

Data Source

PatentUS11796282B1Firearm mounting system and related method of use
Publication Date: 2023.10.24 LEAPERS INC
  • US11796282B1 patent drawing
  • US11796282B1 patent drawing
  • US11796282B1 patent drawing

AI summary

A firearm mount is provided including an upper handguard configured to extend above a cocking lever housing of a firearm and a receiver shroud extending rearward from the upper handguard and integrally formed with the upper handguard to form a single piece guard. The upper handguard can define a cocking lever slot and the receiver shroud can define an ejection port recess rearward of the slot. The receiver shroud can include a mounting rail, such as a picatinny rail, and opposing lateral sidewalls extending downward from the rail. The receiver shroud can simultaneously extend above a firearm receiver as the upper handguard extends above a cocking lever housing to cover an upper surface of the firearm. The guard can be secured to the firearm with opposing plugs having claws that engage ledges of the receiver to clamp the guard to the firearm. A related method of use is provided.