Magazine Release Interference Pin for AR-Style Rifle Safety
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing AR-Style rifles lack a mechanism to prevent accidental magazine release when the upper receiver is closed and locked onto the lower receiver, and to allow magazine release when the upper receiver is opened, which can lead to unintended reloading or firing issues.
Innovation Solution
A magazine release button interference pin assembly is introduced, comprising a spring-loaded pin that interferes with the magazine release button when the upper receiver is closed and locks into place, and allows depression when the upper receiver is opened, utilizing a retaining pin and specially machined holes in the lower receiver to facilitate this function.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a magazine release button is provided on an AR-Style rifle, then easy magazine release is achieved, but accidental magazine release when the upper receiver is closed may occur
Solution Approach 1:
An interference pin is introduced as an intermediary component between the magazine release button and the trigger mechanism. This pin physically blocks the button's movement when the upper receiver is closed, preventing accidental magazine release while maintaining the button's normal function when the receiver is open.
Solution Approach 2:
The interference pin is designed to be movable rather than fixed, allowing it to dynamically adjust its position based on the upper receiver state. When the receiver is closed, the pin moves into a position that blocks the magazine release button; when the receiver is open, the pin moves away to allow button operation.
2Ease of operation
If the magazine release button is always accessible, then reloading is convenient, but the rifle may fire unintentionally when the upper receiver is closed
Solution Approach 1:
The interference pin serves as a mediator that conditionally permits or prevents magazine release based on the upper receiver state. It blocks the button when the receiver is closed (preventing unintentional firing) and allows the button when the receiver is open (enabling convenient reloading).
Solution Approach 2:
The interference pin applies preliminary blocking action to the magazine release button before any accidental discharge can occur. By positioning the pin to block the button's travel path when the upper receiver is closed, it prevents the harmful action of unintentional magazine release and subsequent firing.
3Reliability
If an interference pin assembly is added to prevent accidental magazine release, then safety is improved, but device complexity increases
Solution Approach 1:
The interference pin assembly is segmented into distinct functional components: the interference pin itself, a spring for providing return force, and a retaining structure for mounting. This segmentation allows each component to be optimized independently and simplifies assembly and maintenance.
Solution Approach 2:
The interference pin assembly is designed to be self-actuating through the spring mechanism. When the upper receiver is closed, the assembly automatically positions the pin to block the magazine release button without requiring external control systems or additional actuators.
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
This solution ensures that the magazine release button cannot be depressed when the rifle is ready to fire, preventing accidental magazine ejection, and allows easy reloading by enabling magazine release when the upper receiver is opened, enhancing operational safety and convenience.
Implementation Method 1
a magazine release button interference pin that functions to prevent the depression of a magazine release button of an AR-Style rifle when an upper receiver is closed or locked onto a lower receiver of the AR-Style rifle
Data Source
AI summary
Magazine release button interference pin assembly and AR-style lower receiver functions to prevent the depression of the magazine release button on an AR-style rifle while the upper receiver is closed or locked onto the lower receiver. Magazine release button interference pin assembly and AR-style lower receiver prevents magazine release and reloading while the upper receiver is closed or locked onto the lower receiver. Magazine release button interference pin assembly and AR-style lower receiver is a magazine release button interference pin assembly as well as a specially machined lower receiver to accept the magazine release button interference pin assembly. Magazine release button interference pin assembly includes a special magazine release button interference pin with at least two protrusions, a spring, and a retaining pin.