Movable Firearm Sight Assembly for Suppressor Clearance
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Solution Overview
Problem
Existing firearm sights for pistols are often incompatible with suppressors, leading to blocked sighting lines and difficulties in installation and removal, while folding BUIS for rifles are bulky and only usable in the deployed condition, and optical sights on pistols can obstruct the viewing window.
Innovation Solution
A firearm sight assembly with a rear sight element movable between a lowered and elevated condition, featuring pivotally connected rear and front sight elements, and an integrated non-magnifying reflex sight that maintains a clear optical path and adjusts height to accommodate suppressors without obstructing the viewing window.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If high profile sights are installed to clear suppressors, then the sighting line is cleared of suppressor obstruction, but the sights become incompatible with pistol holsters and increase device complexity
Solution Approach 1:
The sight assembly incorporates a movable sight element that can pivot between a lowered position (clearing the suppressor) and an elevated position (clearing the sight line). This dynamic adjustment allows the same sight to function with both suppressors and holsters, resolving the adaptability contradiction.
Solution Approach 2:
The height of the sight element above the slide surface is changed by pivoting the sight element between two positions. In the lowered position, the sight height is reduced to clear the suppressor; in the elevated position, the sight height increases to clear the sight line when no suppressor is attached.
2Object-affected harmful factors
If high profile sights are installed to clear suppressors, then the sighting line is cleared, but installation and removal become difficult and time consuming
Solution Approach 1:
The sight element is designed to pivot freely between lowered and elevated positions, allowing rapid adjustment without tools. The sight element can be quickly rotated to the appropriate position depending on whether a suppressor is attached, eliminating the time-consuming installation and removal process.
Solution Approach 2:
The sight element is pre-configured with a pivot mechanism that allows it to be quickly rotated between positions. The user can mentally prepare which position is needed and simply rotate the sight element to that position, eliminating the need for complex installation procedures.
3Measurement precision
If optical sights are installed on pistols, then aiming capability is improved, but the optical sight blocks the viewing window of existing iron sights
Solution Approach 1:
The iron sight elements are made movable and can be pivoted to different heights. When an optical sight is mounted, the iron sights can be positioned in a lowered configuration that clears the optical sight's viewing window, allowing both sighting systems to function simultaneously without interference.
Solution Approach 2:
The solution adds vertical dimension adjustment to the iron sights by allowing them to pivot between elevated and lowered positions. This vertical movement allows the iron sights to clear the optical sight's viewing window when needed, while still providing iron sight capability when the optical sight is not in use.
4Measurement precision
If folding BUIS are adapted for co-witness through rifle scope, then optical co-witnessing is achieved, but the sight height becomes excessively large requiring substantial mass and width
Solution Approach 1:
The iron sight elements are designed to pivot between elevated and lowered positions. When co-witnessing through an optical sight is desired, the iron sights can be positioned in a lowered configuration that requires minimal height, mass, and width, while still achieving proper alignment with the optical sight's reticle.
Data Source
AI summary
A firearm sight assembly comprises a rear base. The firearm sight assembly comprises a rear sight element movable with respect to the rear base between a lowered condition and an elevated condition. The rear sight element has a first pair of upwardly projecting first rear posts defining a first notch therebetween when in the lowered condition. The rear sight element has a second pair of upwardly projecting second rear posts defining a second notch therebetween when in the elevated condition. The first rear posts extend to a first height above the rear base, and the second rear posts extend to a second height above the rear base. The second height is greater than the first height.