Firearm Trigger Reset Mechanism via Bolt Carrier Energy
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Solution Overview
Problem
Existing semi-automatic firearm trigger mechanisms, such as those in AR-15 platforms, limit the rate of fire due to the need for manual release and reactivation of the trigger, and existing drop-in solutions for faster fire rates are not compatible with common platforms like AR-15, AK47, and Ruger 10/22 without modifying the fire control mechanism and bolt carrier group.
Innovation Solution
A semi-automatic trigger reset mechanism that utilizes the recoil of the bolt carrier group to aid in the forward reset of the trigger, transferring energy through a pivotally connected paddle to the rear trigger lever, allowing for rapid trigger actuation without manual release, and is designed as a drop-in solution compatible with various semi-automatic firearm platforms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a standard manual trigger release mechanism is used, then the firearm operates reliably with simple mechanics, but the rate of fire is limited by the operator's manual trigger manipulation speed
Solution Approach 1:
The trigger reset mechanism performs preliminary action by automatically resetting the trigger forward position using the rearward motion of the bolt carrier group. This preliminary reset action eliminates the need for the operator to manually release and re-actuate the trigger, thereby increasing the rate of fire while maintaining compatibility with standard firearm platforms
Solution Approach 2:
The trigger mechanism performs self-service by utilizing the existing recoil energy of the bolt carrier group to automatically reset the trigger. The system serves itself by converting the natural rearward motion of the bolt carrier into forward motion of the trigger, eliminating the need for external manual intervention and improving productivity
2Productivity
If existing trigger reset devices are installed to increase fire rate, then faster shooting is achieved, but the devices require modification or replacement of the fire control mechanism and bolt carrier group
Solution Approach 1:
The trigger reset mechanism is designed with universality to be compatible with multiple standard firearm platforms including AR-15, AK47, and Ruger 10/22. The mechanism can be installed as a drop-in solution without requiring modification or replacement of the fire control mechanism and bolt carrier group, making it easy to manufacture and install while achieving faster fire rates
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
Enables a more rapid fire rate by automatically resetting the trigger forward after each shot, maintaining compatibility with standard firearm platforms and ensuring compliance with regulations, while allowing the firearm to be ready to fire immediately after chambering a new round.
Implementation Method 1
The bolt carrier group then contacts a buffer spring, which returns the bolt carrier group to battery and chambers a new round in the process
Implementation Method 2
transfer the forward recoiling force produced by the buffer spring into the bolt carrier group, which in turn may transfer the energy downward through a paddle
Data Source
AI summary
A trigger reset device that utilizes a base and a pivotal paddle to aid in the reset the trigger of a semi-automatic firearm that utilizes a bolt carrier group and single stage trigger. After each actuation of the trigger, the trigger reset device aids in the reset of the trigger at a rate faster than most amateur operators are able to release their finger off the trigger. The aided reset device thereby allows the operator to the fire the firearm at an enhanced rate.