Rotating Lock Mechanism for Muzzle Shroud Attachment
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Solution Overview
Problem
Existing firearm systems lack a secure and convenient mechanism for quickly attaching and detaching muzzle shrouds and suppressors, which can lead to issues with concentricity and ease of use, particularly when combining these devices with flash hiders or brakes.
Innovation Solution
A lock mechanism that securely attaches a muzzle shroud to a muzzle device using a rotating system with guide pins and detent pins, allowing for quick on-off functionality and maintaining concentricity, enabling the concurrent use of suppressors and other muzzle devices like flash hiders or brakes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a suppressor or muzzle device is directly threaded onto the barrel, then secure attachment is achieved, but installation time increases and flash hider/compensator usage is precluded
Solution Approach 1:
The muzzle device is divided into two main segments: a threaded portion that attaches to the barrel and a shroud portion that can be quickly attached or removed. This segmentation allows the permanent threaded connection to remain on the barrel while enabling rapid attachment/detachment of the shroud component.
Solution Approach 2:
The lock mechanism features a nested structure where the lock body contains internal components (guide pins, detent pins, springs) that are housed within cavities. The shroud portion nests over the muzzle device, and the lock mechanism nests within the shroud assembly, creating a compact integrated system.
2Productivity
If a quick detach mechanism using clamp or other securing means is used, then installation speed improves, but concentricity is lost or device walks loose with use
Solution Approach 1:
The guide pins are positioned asymmetrically within the lock mechanism, with specific placement relative to the detent pins and springs. This asymmetric arrangement creates a self-centering effect that maintains concentricity during attachment and prevents walking loose during use.
Solution Approach 2:
The spring-loaded detent pins automatically engage with corresponding features on the muzzle device when the shroud is attached. This self-actuating mechanism maintains concentricity and prevents loosening without requiring external adjustment or intervention during operation.
3Adaptability or versatility
If multiple muzzle devices are combined, then functionality increases, but attachment security and concentricity become problematic
Solution Approach 1:
The lock mechanism is designed with universal compatibility features, including standardized threading options (e.g., 5/8-24 UNF, 1/2-28 UNF) and a modular shroud design that can accommodate different muzzle device configurations. This allows the same lock mechanism to secure various combinations of suppressors, flash hiders, and compensators.
Solution Approach 2:
The lock mechanism serves as an intermediary component between the barrel and multiple muzzle devices. The threaded portion attaches to the barrel while the shroud portion can securely hold multiple devices, with the lock mechanism mediating the connection and maintaining concentricity across different device combinations.
Data Source
AI summary
A firearm blast reduction device installable on a muzzle of a firearm may include a lock device, a muzzle device and a muzzle shroud. When assembled together, the muzzle shroud faces a front side of the firearm and the muzzle device faces a rear side of the firearm, with the lock device received in the muzzle device and between the muzzle device and the muzzle shroud. To install, the muzzle shroud is rotated in one direction to lock the firearm blast reduction device on the muzzle. To uninstall, the muzzle shroud is rotated in an opposite direction to release the firearm blast reduction device from the muzzle.