Quick Take-Down Firearm Coupling for Tool-Free Barrel Removal
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Solution Overview
Problem
Existing firearms, such as AR-15, AR Pistols, and M16 rifles, require specialized tools and a workbench for disassembly and reassembly of the rifle barrel from the upper receiver, and existing tool-less systems are not robust, complicated, and do not allow for use of standard MILSPEC handguards and accessories.
Innovation Solution
A quick-take down coupling system featuring an upper receiver coupling with rotationally offset gas tube tunnels, a sliding lock collar, and a barrel coupling that allows for easy installation and removal of the barrel from the upper receiver using a translational motion, maintaining compatibility with standard MILSPEC accessories.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional firearm assembly methods are used, then the connection is strong and reliable, but the disassembly and reassembly process requires specialized tools and a workbench, making it time-consuming and complex
Solution Approach 1:
The firearm coupling system is divided into separate components: an upper receiver coupling, a barrel coupling, and a locking mechanism. This segmentation allows the barrel to be quickly detached from the upper receiver by simply moving the locking mechanism, eliminating the need for specialized tools and workbench equipment while maintaining a secure connection during operation
Solution Approach 2:
The locking mechanism transitions from a static locked position to a dynamic unlocked position, allowing the barrel coupling to be quickly removed from the upper receiver coupling. This dynamic capability enables rapid disassembly and reassembly without requiring tools, directly addressing the time loss issue while maintaining connection reliability when locked
2Ease of operation
If tool-less disassembly systems are implemented, then ease of operation improves, but the systems become complicated and less robust
Solution Approach 1:
The locking mechanism is integrated into the barrel coupling assembly, combining the locking function with the barrel mounting structure. This merging reduces the number of separate components and simplifies the overall system while maintaining tool-less operation capability and connection robustness
Solution Approach 2:
The locking mechanism is designed to be operated directly by the user without requiring external tools or specialized equipment. The mechanism uses inherent mechanical advantages within its structure to provide secure locking and unlocking actions, reducing system complexity while maintaining ease of operation and connection reliability
3Productivity
If quick-release mechanisms are used, then disassembly speed improves, but compatibility with standard MILSPEC accessories and handguards is lost
Solution Approach 1:
The upper receiver coupling and barrel coupling are designed with standardized interfaces that maintain compatibility with MILSPEC handguards and accessories while incorporating a quick-release locking mechanism. This allows the system to achieve rapid disassembly and reassembly speeds without sacrificing adaptability to standard military specifications and accessories
Data Source
AI summary
Quick take-down firearms and methods of using quick-take down firearms. The quick-take down includes an upper receiver coupling and a barrel coupling. The quick take-down can be unlocked by sliding a sliding lock collar in a translational motion to an unlocked position to release locking elements from a locked configuration. In the unlocked position, a barrel and handguard may be installed onto and removed from the upper receiver of the firearm. Releasing the sliding lock collar returns it to a locked position, securing the barrel and handguard to the upper receiver.