Black Rain Ordnance Fusion Complete Upper 5.56 NATO 16" Spec+ Series Red Battleworn

The Black Rain Ordnance Fusion is a complete AR-15 upper receiver kit chambered in 5.56 NATO, built around a 16" 4150 Chrome Moly barrel. The barrel features a nitride-coated finish and is paired with a carbine-length gas system operating via direct impingement. The Spec+ Series upper ships with a nitride-coated Spec15 bolt carrier group included. This build is finished in Black Rain Ordnance's distinctive Red Battleworn Cerakote pattern, one of 21 available finish options across the Spec+ Series lineup. The muzzle threading details are not specified in supplier data; confirm threading before suppressor or muzzle device installation.