Adjustable Bolt Carrier Speed Control Apparatus
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Solution Overview
Problem
Current firearms, such as M16 and AR-15 rifles, face challenges in controlling bolt carrier speed during rapid fire sequences, leading to accuracy issues due to unregulated cycle time, which affects cartridge ejection and firearm deflection.
Innovation Solution
A cylindrical bolt carrier speed control apparatus with a central bore and adjustable segments that can be coupled to the bolt carrier or buffer tube, utilizing spring members and wall engagement members to adjust the bolt carrier's cycle speed by engaging with the firing chamber or buffer tube surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the bolt carrier assembly operates at high speed during rapid fire, then productivity increases, but accuracy deteriorates due to uncontrolled cycle time causing firearm deflection
Solution Approach 1:
The patent applies dynamics by making the bolt carrier assembly's cycle time adjustable rather than fixed. The speed control apparatus allows the cycle time to be dynamically modified during operation, enabling the system to adapt between high-speed rapid fire and controlled-speed precision shooting modes. This resolves the contradiction by allowing both high productivity and high precision to be achieved under different operational conditions.
2Productivity
If the bolt carrier cycle time is reduced for rapid fire, then productivity increases, but harmful factors increase due to increased firearm deflection and disruption
Solution Approach 1:
The patent implements feedback control through the speed control apparatus that monitors and adjusts the bolt carrier assembly's cycle time. By providing control over the return speed of the bolt carrier, the system can optimize performance to minimize harmful effects such as firearm deflection and disruption while maintaining high rates of fire. The feedback mechanism allows real-time adjustment to reduce harmful factors during rapid fire operations.
3Ease of operation
If gas flow is controlled to effect the cycle of the bolt carrier, then the bolt carrier cycles, but the speed of the cycle time remains uncontrolled
Solution Approach 1:
The patent introduces a speed control apparatus as an intermediary device between the gas flow system and the bolt carrier assembly. This intermediary component specifically targets and controls the return speed of the bolt carrier during its cycling operation. By adding this intermediate control mechanism, the system maintains ease of operation for bolt carrier cycling while gaining precise control over the cycle time speed, resolving the contradiction between operational simplicity and speed control.
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
The apparatus allows for precise control of bolt carrier speed, enhancing accuracy and minimizing disruption during rapid fire by adjusting the cycle time, thereby improving the firearm's performance in rapid sequence firing.
Implementation Method 1
The buffer tube contains a spring and will facilitate the return of the bolt carrier so as to complete the cycle of the bolt carrier assembly
Implementation Method 2
the apparatus is configured to provide adjustment of the cycle time of the bolt carrier assembly
Data Source
AI summary
A bolt carrier speed control apparatus that is configured to provide adjustable speed control of the bolt carrier during firing of a round of ammunition. The bolt carrier speed control apparatus is configured to be mounted in a first location or a second location. The bolt carrier speed control apparatus includes a body that is cylindrical in form. The body includes and interior volume and further includes a central bore extending longitudinally therethrough. Circumferentially disposed around the central core are a plurality of movement assemblies. The movement assemblies are configured to move in an inward-outward direction that is facilitated by traversal of an adjustment screw through the central bore. The movement assemblies include a wall engagement member that is configured to extend beyond the external surface of the body so as to engage a portion of the firearm and provide speed control of the bolt carrier through added friction.