FAB Defense FX-OMCK Opposite Mag Coupler Kit w/2 Ultimag 10-Rd 5.56x45mm NATO Mags

The FAB Defense FX-OMCK is an opposite magazine coupler kit that ships complete with the coupler hardware and two FAB Defense Ultimag 10-round 5.56x45mm NATO AR-pattern magazines. Built for the AR-15/M16/M4 platform, the kit gives you a ready-to-run dual-mag reload solution straight out of the box.

The opposite coupler binds the two magazines along their opposing sides so they sit side-by-side rather than stacked, keeping the rifle slimmer than a traditional top-over-bottom configuration. The setup delivers secure coupling, fast reloads, compact storage, and easy handling. The two included Ultimag 10-round magazines are built for reliable feeding in standard AR-platform lowers, giving you a pre-paired dual-mag setup for range or field use.

The complete kit measures approximately 7.1" long by 1.4" tall and weighs about 0.575 lb, fitting easily into a mag pouch, range bag, or plate carrier admin pouch. As a self-contained dual-mag package, the FX-OMCK is a straightforward way to add a coupled-mag reload option to your AR-pattern rifle without sourcing parts separately.