Reversible Plates for Firearm Handedness Adaptation

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Solution Overview

Problem

Current firearms are predominantly designed for right-handed users, leaving left-handed users to special order components, and the aftermarket industry seeks increased versatility to accommodate both left- and right-handed users with enhanced usability features.

Innovation Solution

A firearm design featuring a pair of reversible plates that can be removably coupled to the chassis, with one plate having a recess for the bolt handle and the other a quick-disconnect tool interface, allowing for easy interchangeability between right- and left-handed configurations and providing a dual function for carrying the firearm at an ideal height.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If firearms are designed for right-handed users only, then manufacturing and inventory complexity is reduced, but adaptability to different user needs deteriorates

Engineering Contradiction:
Improveadaptability to left- and right-handed usersVSAvoidcomplexity of firearm configurations
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The firearm is divided into modular components with standardized interfaces. The receiver, stock, and accessories are separate modules that can be independently configured and interchanged through standardized mounting points and attachment mechanisms, allowing right-handed and left-handed configurations without redesigning the entire system.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The firearm employs universal mounting interfaces and standardized attachment points that accommodate multiple configurations. The same receiver can mount both right-handed and left-handed stocks and accessories through universal Quick-Disconnect (QD) interfaces, making the system multi-functional without increasing inherent complexity.

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

2Manufacturing precision

If special-order components are provided for left-handed users, then customization accuracy is improved, but loss of time and increased cost deteriorate

Engineering Contradiction:
Improveprecision of left-handed component fitVSAvoidtime for special ordering and delivery
Core Design Contradiction:
Manufacturing precisionVSLoss of time

Solution Approach 1:

Right-handed and left-handed components are merged into a single standardized platform. Both configurations use the same receiver, magazine, and accessory interfaces, allowing users to switch between handedness configurations using the same base firearm with interchangeable stocks and accessories, eliminating the need for separate special-order production lines.

Inventive Principle:
Principle #5Merging (Combining)

3Adaptability or versatility

If interchangeable plates are added to provide versatility, then adaptability to different users is improved, but device complexity increases

Engineering Contradiction:
Improveversatility for different user preferencesVSAvoidcomplexity of plate interchangeability system
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The interchangeable plates are designed with specific local features optimized for their function: the first plate has a recess shaped to receive the bolt handle for left-handed operation, while the second plate has a firearm tool interface for accessory mounting. Each plate's geometry is locally optimized for its specific purpose while maintaining a universal attachment interface.

Inventive Principle:
Principle #3Local quality

Data Source

PatentEP3489611B1Interchangeable plates for a firearm
Publication Date: 2022.10.26 MAGPUL INDUSTRIES
  • EP3489611B1 patent drawingFigure 1
  • EP3489611B1 patent drawingFigure 2
  • EP3489611B1 patent drawingFigure 3

AI summary

A firearm and related methods and components are disclosed. The firearm has a chassis (102), a stock portion (104) coupled to the chassis (102), and a pair of reversible plates (110, 112) removably coupled to the chassis (102). Each of the pair of reversible plates (110, 112) is attachable to the chassis (102) at a first location (114) and a second location (116) opposing the first location. A first one (110) of the pair of reversible plates has a recess for receiving a portion of a bolt handle. A second one (112) of the pair of reversible plates has a firearm tool interface (122).