Do you want to carry an extra magazine without having to add more weight to your kit? Perhaps, you want to carry your weapon unloaded with a magazine ready to load at hand? The FAB Defense AR15/M16 Polymer 5.56×45 NATO Vertical Magazine Carrier is up to the task. Made of a durable, lightweight fiberglass-reinforced polymer, the FAB Defense AR15 Magazine Carrier provides you with an external, parallel, weapon-mounted magazine carrier. This tactical magazine carrier is mounted to the weapons magazine well. This enables quicker reloading which is crucial in a combat scenario. This weapon-mounted magazine carrier keeps the magazine well area clean without interfering in its operation. If you are carrying your weapon unloaded but would like to have a magazine at-the-ready to load, this is the safe and ideal solution for you.