FN builds the rifles that carry the M4 and M16 contracts for the U.S. military, and the FN15 Military Collector series is the company letting civilian shooters own that same lineage. This is the serialized lower receiver assembly from that line, forged from 7075-T6 aluminum with a mil-spec hard-coat anodized finish and the milled M4 profile.

As the serialized component, it is the legal firearm and the foundation of the build. Pair it with a 5.56/.223 upper of your choice and you have a rifle built on the same receiver geometry FN produces for military contracts.

This firearm ships to your chosen FFL dealer for transfer. Order online from Dawson Defense, an Arizona-owned licensed dealer and importer.