Rotating Stock Butt and Sight Alignment for Firearm
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Solution Overview
Problem
Existing shoulder-fired firearms do not allow for efficient alignment of the firing mechanism and barrel offset, requiring significant head movement to align the sight device, which is not conducive to both right and left-handed shooters.
Innovation Solution
A rotating stock butt system with an internal aligning tube and series of spacers that secure the stock butt in a selected position, combined with rotating sights that maintain top-center alignment with the firearm barrel, allowing minimal head movement for sight alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the stock butt and sight device are fixed in a traditional non-rotating configuration, then the structure is simple and easy to manufacture, but the shooter requires significant head movement to align the eye with the sight device, which is not conducive to both right and left-handed shooters
Solution Approach 1:
The stock butt is made rotatable about the action spring tube, transforming from a fixed static structure to a dynamic adjustable one. This allows the stock butt to be rotated to different positions (e.g., 0 degrees for right-handed shooters, 180 degrees for left-handed shooters) to optimize sight alignment without requiring head movement, while still maintaining structural simplicity through the rotation mechanism
Solution Approach 2:
The stock butt is divided into separable components including the rotating stock butt portion, the action spring tube, and the sight device. This segmentation allows independent adjustment and rotation of the stock butt relative to the barrel and sight, enabling the sight to remain top-center aligned with the barrel while the stock butt rotates to accommodate different shooter preferences
2Adaptability or versatility
If the stock butt is made rotatable to allow alignment for both right and left-handed shooters, then ease of operation is improved, but the structural complexity and difficulty of securing the stock butt in position increases
Solution Approach 1:
The locking mechanism uses self-service features where the stock butt itself provides the locking function through its interaction with the action spring tube and cheek pieces. The stock butt includes features like the cheek weld that naturally secure it in position, and the locking mechanism utilizes the existing structural elements rather than requiring entirely separate complex locking components
Solution Approach 2:
The action spring tube serves multiple functions: it acts as the rotational axis for the stock butt, provides structural support, and works with the cheek pieces to secure the stock butt in the selected position. This multi-functionality reduces the need for additional dedicated locking components, maintaining simplicity while achieving adaptability
Data Source
AI summary
A novel and improved rotating stock butt and rotating sight apparatus that applies to a shoulder fired firearm where the firing mechanism and the sight apparatus is elevated above the stock butt when in a horizontal shooting position. This system comprises a cooperation between the rotating stock butt and the rotating sight apparatus that allows the firing mechanism and the barrel of the firearm to be off set to either the right or to the left of the stock butt while the sight of the rotating sight apparatus can be rotated and secured at the top center of the firearm barrel, allowing the shooter minimal head movement in the gun mount.


