Modular Magazine Assembly for Multi-Caliber Firearm Compatibility

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Conventional firearms require different receivers and magazines for various calibers, limiting compatibility and versatility.

Innovation Solution

A modular magazine assembly comprising a magazine shell with an internal cavity and a magazine that can be secured within the shell, allowing the assembly to function as a single, versatile magazine compatible with multiple calibers.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional firearms use dedicated magazines for each caliber, then reliability is improved, but adaptability deteriorates

Engineering Contradiction:
Improvemagazine reliabilityVSAvoidcaliber compatibility
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The magazine system is divided into two independent components: a caliber-specific internal magazine and a universal external shell. The internal magazine is designed for a specific caliber with precise feed lips and follower geometry, ensuring reliable feeding for that caliber. The external shell provides universal compatibility with different firearm receivers through standardized dimensions and attachment mechanisms. This segmentation allows each component to be optimized independently - the internal magazine for caliber-specific reliability and the external shell for multi-caliber adaptability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The caliber-specific magazine is nested within the universal external shell, creating a hierarchical structure where the internal magazine fits inside the outer casing. This nested configuration allows the caliber-specific components to remain protected and integrated while the external shell provides the interface for firearm compatibility. The internal magazine can be removed and replaced independently, allowing users to swap calibers by changing only the inner magazine while retaining the universal shell.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Reliability

If firearms require different receivers for various calibers, then reliability is improved, but device complexity deteriorates

Engineering Contradiction:
Improvefirearm system reliabilityVSAvoidreceiver variety
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The external shell is designed with universal compatibility features that allow a single shell design to interface with multiple firearm receiver types and calibers. Standardized attachment points, consistent external dimensions, and adaptable feed lip configurations enable the same shell to work across different platforms. This universality eliminates the need for multiple specialized receivers, reducing device complexity while maintaining reliability through proven receiver designs.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Adaptability or versatility

If multiple magazines are required for different calibers, then adaptability is improved, but quantity of substance deteriorates

Engineering Contradiction:
Improvecaliber flexibilityVSAvoidnumber of magazines
Core Design Contradiction:
Adaptability or versatilityVSQuantity of substance

Solution Approach 1:

The system merges the universal external shell with caliber-specific internal magazines, allowing users to combine a single universal shell with multiple interchangeable internal magazines of different calibers. This approach reduces the total number of complete magazine assemblies needed - instead of requiring separate full-size magazines for each caliber, users can share the universal shell component across multiple calibers, only needing to swap the smaller internal magazine components.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS20250123067A1Modular magazine assemblies
Publication Date: 2025.04.17 UNDERWOOD JAMES MATTHEW
  • US20250123067A1 patent drawing
  • US20250123067A1 patent drawing
  • US20250123067A1 patent drawing

AI summary

A modular magazine assembly includes a magazine shell with an internal cavity and a magazine disposed within the internal cavity of the magazine shell. The magazine shell includes a magazine catch cavity for securing the magazine shell relative to a firearm receiver. The magazine shell includes an internal magazine catch feature for securing the magazine within the magazine shell.