Ambidextrous Side Charging Handle With Integrated Firing Pin Retention
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Solution Overview
Problem
Conventional charging handles for AR-type firearms are cumbersome and not easily operable by both right and left-handed users, lacking ambidextrous functionality.
Innovation Solution
A side-mounted ambidextrous charging handle is designed with a transversely oriented mounting pin member and a self-retained retention clip, allowing it to be coupled to either side of the bolt carrier assembly, retaining the firing pin and minimizing parts for easy operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional T-shaped top mounted charging handle is used, then the charging handle can be mounted on the firearm, but it is cumbersome and not easily operable by both right and left-handed users
Solution Approach 1:
The charging handle is mounted on the side of the receiver rather than on top, creating an asymmetric configuration that allows users to access the handle from either the left or right side, thereby enabling ambidextrous operation while improving ease of access
2Device complexity
If a conventional charging handle design is used, then the charging handle can cycle the bolt carrier group, but it requires multiple separate parts including a retention clip that may be lost during maintenance
Solution Approach 1:
The charging handle assembly integrates the charging handle, mounting pin, and retention clip into a single combined unit. This merging of components reduces the total number of parts and ensures that the retention clip cannot be lost during maintenance since it is permanently attached to the charging handle assembly
Solution Approach 2:
The charging handle assembly serves multiple functions: it cycles the bolt carrier group, retains the firing pin, and prevents loss of the retention clip, all within a single integrated component system
Data Source
AI summary
A firearm with side-mounted charging handle includes a longitudinal axis, a receiver, a barrel, and a bolt carrier assembly movably disposed in the receiver. The bolt carrier assembly includes a bolt carrier and a bolt disposed at least partially therein. A charging handle comprises a mounting pin member passing transversely through the bolt carrier between first and second lateral sides thereof, and a grasping member projecting transversely outwards from the first lateral side of the bolt carrier for manually cycling the bolt carrier assembly from a forward closed breech position to the rearward open breech position. A firing pin is disposed in bolt for axial movement to strike a chambered cartridge to discharge the firearm. The charging handle mounting pin member is configured to cooperate with and retain the firing pin in the bolt carrier to block withdrawal of the firing pin from the bolt carrier assembly.