Spherical Butt Stock With Counterweights for Firearm Balance

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Solution Overview

Problem

Modern firearms with lighter materials and higher-capacity magazines face challenges in stabilizing weight distribution, particularly when fired from non-traditional positions, leading to instability and potential operator injury due to inadequate butt stock positioning.

Innovation Solution

A detachable butt stock with a spherical or spheroid shape and counter weights that adjusts to various body positions, featuring a locking mechanism and internal components for secure attachment to the firearm buffer tube, allowing for balanced weight distribution and stabilization.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Weight of moving object

If lighter materials (composite plastics) are used for firearm components, then the firearm becomes lighter and easier to handle, but the weight distribution becomes unbalanced causing instability

Engineering Contradiction:
Improvefirearm weightVSAvoidweight distribution stability
Core Design Contradiction:
Weight of moving objectVSStability of the object's composition

Solution Approach 1:

The patent applies counterweight principle by adding weight to the butt stock to balance the forward weight of high-capacity magazines. The adjustable weight system compensates for the unbalanced weight distribution caused by lighter materials and heavy front-end components, restoring stable weight balance across the firearm.

Inventive Principle:
Principle #8Anti-weight (Counterweight)

2Quantity of substance

If high-capacity magazines are installed to increase ammunition capacity, then the magazine capacity increases, but the forward weight increases causing the firearm to tilt forward and become unstable

Engineering Contradiction:
Improvemagazine capacityVSAvoidfirearm balance
Core Design Contradiction:
Quantity of substanceVSStability of the object's composition

Solution Approach 1:

The adjustable counterweight system in the butt stock directly compensates for the forward weight of high-capacity magazines. By adding adjustable weight to the rear of the firearm, the system balances the center of gravity, allowing stable operation even with large magazine capacities.

Inventive Principle:
Principle #8Anti-weight (Counterweight)

3Ease of operation

If a traditional shaped butt stock is used, then the firearm can be operated in traditional positions, but it cannot provide stable positioning when fired from prone or non-traditional positions

Engineering Contradiction:
Improvetraditional firing positionVSAvoidfiring position adaptability
Core Design Contradiction:
Ease of operationVSAdaptability or versatility

Solution Approach 1:

The butt stock features adjustable geometry with multiple articulation points that allow the operator to configure the stock shape for different firing positions. The adjustable design enables the butt stock to adapt from traditional shoulder-fired positions to prone and other non-traditional positions, providing stable positioning for accurate operation.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The butt stock is divided into multiple adjustable segments or articulation points that can be independently positioned. This segmentation allows the operator to configure the stock geometry for different firing scenarios, enabling adaptability across traditional and non-traditional positions while maintaining stable contact with the operator's body.

Inventive Principle:
Principle #1Segmentation

4Adaptability or versatility

If the butt stock is made detachable with adjustable components, then the adaptability to different positions improves, but the device complexity increases

Engineering Contradiction:
Improveposition adaptabilityVSAvoidbutt stock structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The adjustable geometry system uses dynamic components that allow the butt stock to be reconfigured for different positions. While this increases adaptability, the design balances complexity by using practical adjustment mechanisms that are manageable for field operation.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS12492882B1Butt stock for firearm stabilization
Publication Date: 2025.12.09 IDEAS TO MOVE FORWARD LLC
  • US12492882B1 patent drawing
  • US12492882B1 patent drawing
  • US12492882B1 patent drawing

AI summary

The disclosure is related to a butt stock for a firearm, the butt stock having a spherical body, the butt stock configured and sized to attach to a buffer tube of a firearm.