Our innovative MCR Magazine Adapter plugs directly into the standard magazine well of AR-15/M16/M4 firearms equipped with our belt fed upper, allowing for the mounting of linked ammo containers directly to the firearm. This enhances mobility and streamlines ammunition handling for belt fed firearms. It is compatible with all FightLite MCR, ARES Shrike 5.56 and ARES AMG-2 models. To remove simply press the standard magazine release button and it easily drops away from the lower. A must have accessory for our dual feed MCR. The FightLite industries magazine adapter allows SAW-style ammunition pouches to securely attach to your lower receiver for increased versatility Designed to fit standard AR-15/M16 lower receivers, this adapter works seamlessly with FightLite Industries MCR belt-feed upper receivers