MAG|Coupler™ is a floorplate replacement that joins two compatible magazines back-to-back so you can keep them paired for storage, transport, and handling.
It does not change magazine capacity or firearm operation. Each magazine keeps its original round-count and function.
Made in the USA • Patented (US Patent No. 10,126,076)
How MAG|Coupler™ works
Floorplate replacement
MAG|Coupler™ replaces the magazine’s existing floorplate to create a secure, stable coupling between two compatible magazines.
No permanent modification is required.
Two discrete magazines
Each magazine remains independent. MAG|Coupler™ does not combine capacities and does not change the mechanics or operation of the magazines or the firearm.
Pouch compatible
Designed for practical storage and transport. Coupled magazines are intended to work with standard magazine storage solutions (see pouch options below).
Compatibility matters
MAG|Coupler™ is not universal. Use the product listings to confirm the exact compatible Magpul® magazine model for your platform.
Key point for compliance and clarity:
MAG|Coupler™ does not increase magazine capacity and does not modify firearm function. It simply keeps two compatible magazines paired back-to-back.
Videos
Start with the overview, then assembly, then disassembly/service.
Does MAG|Coupler™ increase magazine capacity or change firearm operation?
No. MAG|Coupler™ keeps two magazines paired back-to-back for storage and handling. Each magazine remains discrete, keeping its original round-count and function.
Is MAG|Coupler™ universal?
No. MAG|Coupler™ is platform and magazine specific. Use each product listing to confirm the exact compatible Magpul® magazine model for your platform.
Is it permanent?
No. MAG|Coupler™ installs as a floorplate replacement and can be removed to return a magazine to its original configuration.
Where do I find the exact compatibility for my magazines?
Use the product listings in the MAG|Coupler™ collection. Compatibility is stated per platform and magazine model.
Where can I see assembly and disassembly steps?
Use the Overview, Assembly, and Disassembly videos above for step-by-step guidance.
These California FFL dealers are already on file for MAG|Coupler™ shipments under AB 1263, which requires shipment through a licensed dealer. Open the list below to view approved dealers that can be selected for direct shipment when requested.