Angled Magazine Positioning for Compact Firearm Ergonomics

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing firearms designs that attempt to reduce length by positioning the magazine above or to the side of the trigger compromise ergonomics and ease of use.

Innovation Solution

A detachable magazine is positioned eccentrically and at an angle behind the trigger, within the firearm's receiver, ensuring it does not protrude beyond the receiver's transverse dimensions, thereby reducing length while maintaining ergonomic handling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Length of moving object

If the magazine is positioned above or to the side of the trigger to reduce firearm length, then the length is reduced, but ergonomics and ease of use deteriorate

Engineering Contradiction:
Improvefirearm lengthVSAvoidergonomics
Core Design Contradiction:
Length of moving objectVSEase of operation

Solution Approach 1:

The magazine is positioned in the longitudinal dimension behind the trigger rather than in the transverse dimension (above or to the side), allowing length reduction without compromising ergonomics. The receptacle is located at a distance from the trigger along the longitudinal axis, creating space efficiency in one dimension while preserving functionality in another.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The receptacle is positioned eccentrically relative to the longitudinal vertical plane passing through the barrel axis, creating an asymmetric layout that optimizes both compactness and ergonomics. This asymmetric positioning allows the magazine to be compact in the transverse direction while maintaining proper operational characteristics.

Inventive Principle:
Principle #4Asymmetry

2Ease of operation

If the magazine receptacle protrudes beyond the receiver dimensions, then accessibility is improved, but the transverse dimensions increase

Engineering Contradiction:
Improvemagazine accessibilityVSAvoidreceiver transverse dimensions
Core Design Contradiction:
Ease of operationVSArea of stationary object

Solution Approach 1:

The magazine receptacle is nested within the receiver's transverse dimensions, with the magazine positioned behind the trigger rather than protruding outward. This nesting approach allows the magazine to be accessible through the longitudinal arrangement while keeping the receiver's transverse footprint compact.

Inventive Principle:
Principle #7Nested doll (Nesting)

Data Source

PatentUS12098900B2Turlakov's rifle N 8 (IRINA)
Publication Date: 2024.09.24 TURLAKOV MAXIM
  • US12098900B2 patent drawing
  • US12098900B2 patent drawing
  • US12098900B2 patent drawing

AI summary

The invention relates to firearms (mainly sports and hunting) and is a magazine-fed firearm in which the magazine is located behind the trigger and at the angle to the vertical plane. This solution allows to reduce the length of the firearm, while not complicating the process of installing the magazine.