Adaptable Sporterized Firearm Stock Ensemble for Regulatory Compliance
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Solution Overview
Problem
Modern semi-automatic centerfire firearms designed for pistol grips and corresponding buttstocks do not function well with traditional sporterized buttstocks due to differences in grip angle, palm-grip, and cheek-rest, making it difficult to comply with regulatory requirements for semi-automatic centerfire rifles and shotguns.
Innovation Solution
A sporterized stock ensemble for long firearms, including a stock-to-receiver adaptor and a sporterized gunstock assembly with a grip portion, stock support section, and butt-plate, which is adaptable to pistol grips, and optionally features a sling interface and buffer tube cover with a snap-on cheek-rest, ensuring compatibility with AR-15 and AK variant rifles and shotguns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional sporterized buttstocks are used on semi-automatic centerfire firearms, then compliance with certain laws is achieved, but compatibility and functionality are lost
Solution Approach 1:
The stock assembly is divided into separate functional components: a receiver interface portion that attaches to the firearm, a grip portion with pistol grip characteristics, and a stock portion with traditional sporterized features. This segmentation allows each part to fulfill its specific function while maintaining overall compatibility
Solution Approach 2:
The adaptor stock assembly serves multiple functions simultaneously: it provides legal compliance for semi-automatic centerfire firearms, maintains pistol grip compatibility for modern firearms, and preserves traditional sporterized rifle characteristics. The design integrates features from both pistol grip and traditional stock configurations into a single multi-functional assembly
2Adaptability or versatility
If pistol grips are replaced with traditional sporterized buttstocks to comply with regulations, then legal requirements are met, but grip angle and ergonomics are compromised
Solution Approach 1:
The grip portion of the adaptor stock is specifically designed with pistol grip characteristics including appropriate grip angle, palm swell, and finger grooves. This local optimization ensures that the critical gripping interface maintains ergonomics suitable for pistol grip firearms while the rest of the stock provides traditional sporterized features
3Adaptability or versatility
If semi-automatic firearms are modified to comply with laws, then legal requirements are satisfied, but device complexity increases
Solution Approach 1:
The adaptor stock combines the receiver interface, grip portion, and stock portion into a single integrated assembly that attaches to the firearm as one unit. This merging approach simplifies installation and modification compared to separate components, reducing overall device complexity while achieving regulatory compliance
Data Source
AI summary
The present invention provides a sporterized firearms stock ensemble configured to be coupled to variety of long firearms having a pistol grip interface. In some embodiments, the firearm stock ensemble includes a stock-to-receiver adapter and a sporterized gunstock assembly. The gunstock assembly includes a grip portion, a butt-plate and a stock support section configured to couple the grip portion to the butt-plate. An adjustable and/or detachable cheek-rest may be attached to the stock support section of the gunstock assembly.