Modular Rifle Chassis Interchangeable Stock Mounting
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current M1A rifle stocks are single-use and cannot be quickly or easily changed, requiring disassembly and reassembly to switch between different types, such as from a solid stock to a pistol grip stock.
Innovation Solution
A modular chassis design for the M1A rifle that allows interchangeable aftermarket stocks to be attached to the receiver end, using a rail system and T-nut mounting mechanism, enabling easy change with a single tool, and accommodating various stock types like the Mossberg model 500 shotgun stock.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional single-use stocks are used for M1A rifle, then structural simplicity is maintained, but stock interchangeability and adaptability are lost
Solution Approach 1:
The rifle system is divided into separate modular components: a standardized chassis with receiver end and independent stocks. The chassis includes a receiver end with mounting features that can accept different stock types, allowing the stock to be separated from the main rifle assembly and replaced independently.
Solution Approach 2:
The chassis receiver end is designed with universal mounting capabilities that can accommodate multiple types of stocks (traditional stocks, pistol grip stocks, folding stocks). The standardized receiver end with its mounting features serves multiple functions by interfacing with various stock designs through a common attachment mechanism.
2Adaptability or versatility
If rifle disassembly is required to change stocks, then stock interchangeability is possible, but time consumption and operational complexity increase
Solution Approach 1:
The rifle is segmented into a permanent chassis portion and a replaceable stock portion. The chassis includes a receiver end with built-in mounting features that interface directly with the stock, allowing the stock to be attached or detached without disassembling the main rifle action or other components.
Solution Approach 2:
The chassis is pre-configured with receiver end mounting features (such as T-nuts, slots, or attachment points) during manufacturing. This preliminary preparation enables quick stock changes later, as the mounting infrastructure is already in place and does not require assembly during the stock replacement process.
3Ease of operation
If fixed stock design is used, then manufacturing simplicity is maintained, but user customization and operational flexibility are reduced
Solution Approach 1:
The chassis receiver end is manufactured as a universal platform with standardized mounting features that can accommodate multiple stock types. This universal design allows a single chassis production process to support various stock configurations, balancing manufacturing efficiency with user customization needs.
Solution Approach 2:
The system allows customization by changing the stock component while keeping the chassis parameters fixed. The receiver end maintains consistent mounting parameters (slot positions, attachment points) while accommodating stocks with different physical parameters (length, grip angle, material), enabling customization without retooling the chassis manufacturing process.
Data Source
AI summary
A rifle chassis is able to convert the M1A rifle to have a modular stock system. The chassis may be designed to permit attachment of a shotgun stock to the M1A chassis. For example, a particular model's modular stock system, such as a Mossberg® model 500 shotgun stock, may be attached to the chassis of the present invention to permit interchangeability of stocks on the rifle.