Firearm Lightening Port Protective Insert Design
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Firearms with lightening ports are vulnerable to water, dirt, and debris ingress, leading to potential damage or malfunction in combat or field environments, as these ports compromise the firearm's balance and accuracy.
Innovation Solution
A protective insert with a rectangular plate and perpendicularly attached wing walls is designed to fit within the lightening port, providing a clearance fit and minimizing friction, while being made from materials with low coefficients of friction and thermal expansion to ensure reliable operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If a lightening port is cut from the slide to reduce weight and barrel heaviness, then the firearm is rebalanced and more maneuverable, but the port becomes an open access for water, dirt and debris to enter the slide and cause damage or malfunction
Solution Approach 1:
The protective cover is designed as a separate removable component that segments the lightening port opening, allowing the port to remain open for weight reduction while the cover seals it when installed, thus resolving the contradiction between weight reduction and protection
Solution Approach 2:
The protective cover can be dynamically installed or removed based on operational needs - installed when protection is needed (field/combat) and removed when weight reduction is prioritized (competition/range), making the system adaptable to different operational contexts
2Reliability
If the protective insert is made to fit tightly within the lightening port to seal it effectively, then protection against debris ingress is improved, but friction increases and may interfere with slide operation
Solution Approach 1:
The insert dimensions are precisely controlled to provide a specific clearance fit (neither too tight nor too loose), and the material selection focuses on achieving an optimal coefficient of friction that balances sealing effectiveness with operational smoothness
Solution Approach 2:
The protective insert is made from polymer materials that can provide a degree of flexibility and conformability, allowing the insert to seal effectively against debris while maintaining low friction characteristics for smooth slide operation
Data Source
AI summary
Methods, devices and systems are provided for protecting a firearm. The device and system include a protective insert for a rectangular port in a firearm, the port having a length, a width and a vertical thickness. The protective insert comprises a rectangular plate having a top, an underside, two longitudinal sides, and two ends, each longitudinal side and each end having a length sized to allow the plate to freely ride vertically within the thickness of the port. The Protective insert also includes two parallel wing walls, each of the wing walls being perpendicularly attached to the underside of the plate and along a longitudinal side edge of the plate, wherein each wing wall extends beyond both of the plate ends and under the slide when installed. The protective insert fills the port in the slide and rides on, and is held in place, by the barrel when in operation.