Elastic Charging Handle Shroud for Blowback Mitigation
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Solution Overview
Problem
Existing firearm charging handle systems fail to effectively mitigate blowback and direct discharge byproducts away from the user's face without requiring replacement of OEM components, leading to fouling and interference with the charging handle's operation.
Innovation Solution
A removable, elastically deformable charging handle shroud made of flexible material that secures to the charging handle and receiver, diverting or sealing discharge byproducts away from the user's face without interfering with the charging handle's operation, compatible with various OEM configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a seal is integrated into the charging handle or receiver assembly, then discharge byproducts are effectively sealed away from the user's face, but the device complexity increases and OEM components must be replaced
Solution Approach 1:
The charging handle assembly is segmented into modular components: the existing OEM charging handle, the receiver assembly, and the newly introduced shroud component. This segmentation allows the seal to be implemented as a separate, removable shroud rather than integrating it into the charging handle or receiver, thereby reducing overall device complexity while still achieving the sealing function.
Solution Approach 2:
The shroud acts as an intermediary component between the charging handle and the external environment. It provides the sealing function by positioning a seal at the interface between the charging handle and receiver, diverting discharge byproducts away from the user's face without requiring modifications to the OEM charging handle or receiver assemblies.
2Object-affected harmful factors
If the charging handle structure is modified to include a seal, then blowback mitigation is improved, but ease of manufacture decreases due to custom charging handle requirements
Solution Approach 1:
The sealing function is segmented into a separate shroud component rather than being integrated into the charging handle manufacturing process. This allows OEM charging handles to be manufactured using existing processes without modification, while the shroud with the seal can be manufactured separately and attached to the assembled charging handle-receiver assembly.
Solution Approach 2:
The shroud serves as an intermediary that provides the sealing function without requiring modifications to the OEM charging handle or receiver. This intermediary component can be manufactured using standard processes and attached to existing assemblies, maintaining ease of manufacture while achieving blowback mitigation.
3Object-affected harmful factors
If a fixed seal is integrated into the charging handle, then sealing effectiveness is improved, but adaptability to different OEM configurations decreases
Solution Approach 1:
The shroud is designed with dynamic, adjustable features including left and right sides that can be selectively removed or repositioned. This allows the shroud to adapt to different OEM charging handle configurations (right-hand operable, left-hand operable, and ambidextrous) while maintaining an effective seal at the charging handle-receiver interface.
Solution Approach 2:
The shroud is designed as a universal component that can be attached to various OEM charging handle configurations. By making the shroud removable and allowing selective removal of left or right sides, it achieves multi-functionality and compatibility across different firearm platforms while maintaining sealing effectiveness.
4Ease of operation
If the charging handle is made removable for seal installation, then ease of operation is improved, but device complexity increases due to additional attachment mechanisms
Solution Approach 1:
The shroud is constructed as a flexible, thin-walled component that can be easily attached to and removed from the charging handle-receiver assembly. This flexible construction allows for simple attachment mechanisms (such as snap-fit or friction-based) rather than complex fastening systems, maintaining ease of operation while minimizing added complexity.
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 prevents discharge byproducts from reaching the user's face, reduces fouling, and maintains the charging handle's operation without altering the OEM components, ensuring compatibility and ease of use across different firearm setups.
Implementation Method 1
the shroud is formed of an elastically deformable material
Data Source
AI summary
A firearm charging handle shroud is defined by a body that is formed of an elastically deformable material and is constructed to be secured to a charging handle by the respective left hand and right-hand charging handle pulls when a charging handle is engaged with an underlying firearm. The shroud wraps generally about a rearward facing surface of a charging handle and is constructed to extend across the interfacing surfaces between a charging handle and an underlying receiver of a firearm. During use, the shroud operates to prevent egress of and/or diversion of gunshot discharge byproducts in directions away from the face of a user of a firearm.