About RJK Ventures LLC

About

Welcome to the MAG|Coupler™ site. Established in 2011, RJK Ventures LLC designs handgun and long gun products for collectors and to aid in firearms training.

RJK Ventures LLC designs and sells firearm-related products including magazine couplers, firearm storage products, and specialty tools through its family of product brands.

RJK Ventures LLC logo

RJK Ventures LLC

RJK Ventures Product Brands

The following related product brands are part of the broader RJK Ventures LLC product family.

Armory Racks®

Armory Racks logo Armory Racks firearm rack product image

Armory Racks® products are designed for firearm organization, storage, and display. These products support practical storage needs for collectors, range users, and firearm owners.

View Armory Racks

Armory Tool

Armory Tool logo Armory Tool product image

Armory Tool products are related RJK Ventures LLC tools designed to support firearm owners, collectors, and maintenance use cases.

View Armory Tool