Modular Recoil Stock Assembly with Interchangeable Receiver Interface
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Solution Overview
Problem
Existing recoil reduction systems for shoulder-fired firearms are complex, difficult to attach, and often cause discomfort or injury due to pinching, while also being limited to specific firearm models and increasing weight or altering the firearm's handling.
Innovation Solution
A modular recoil reduction stock assembly with interchangeable front stock sections and a compressible spring mechanism that absorbs recoil, featuring a cheek rest to prevent pinching and maintain proper firearm handling, adaptable to various firearm receivers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a recoil reduction mechanism is installed behind the firearm receiver, then recoil shock is reduced, but the device complexity increases
Solution Approach 1:
The stock is divided into a rear stock section containing the recoil reduction mechanism and a front stock section that attaches to the receiver. This segmentation allows the complex recoil reduction function to be isolated in a modular rear section while keeping the front section simple and universally compatible with different receiver designs.
Solution Approach 2:
The recoil reduction mechanism is nested within a cavity in the rear stock section. The mechanism itself contains nested components including a housing with a cylindrical conduit that holds a compressible spring, with a plunger extending into the conduit. This nested arrangement consolidates multiple functional elements into a compact integrated unit, reducing overall device complexity.
2Reliability
If a recoil reduction mechanism is designed for a specific firearm model, then the recoil reduction effectiveness is optimized, but the adaptability to different firearm models is limited
Solution Approach 1:
The front stock section is designed with a standardized interface that can attach to multiple different receiver designs. The rear stock section with its cavity for the recoil reduction mechanism remains consistent, while the front stock section can be configured to match different receiver geometries. This universality allows a single recoil reduction mechanism design to be effectively applied across multiple firearm models.
3Object-affected harmful factors
If a compressible fluid or spring mechanism is used to absorb recoil, then recoil shock is reduced, but the weight of the firearm increases
Solution Approach 1:
The recoil reduction mechanism uses a simple compressible spring rather than complex heavy fluid damping systems. The spring is contained within a cylindrical conduit and is relatively lightweight compared to alternative recoil reduction technologies. While the spring will eventually wear or lose elasticity, it provides effective recoil reduction throughout its service life at minimal weight penalty.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Effectively reduces recoil shock without causing discomfort, maintains shooter alignment, and allows for universal compatibility with different firearm models, ensuring consistent handling and accuracy.
Implementation Method 1
a compressible spring mechanism that absorbs recoil
Data Source
AI summary
A recoil reduction stock assembly for a shoulder-fired firearm is described that includes a rear stock section housing a recoil reduction mechanism attachable to firearms with different receiver rear faces by using a front stock section having a rear face attachable to the rear stock section front face and a front face attachable to the rear face of the receiver. The assembly may include one rear stock section housing the recoil reduction mechanism and a plurality of front stock sections, each front stock section having the same rear face profile, but different front face profiles conforming to different receiver rear faces. The recoil reduction mechanism includes a compressible spring and a plunger, whereby recoil of said firearm compresses the spring against the plunger to absorb recoil. The assembly may also include a cheek rest slidably attached over a part of the rear stock section and attached to the recoil mechanism.