Quick view Rock River Arms Rock River Arms Complete RRAGE 3G Upper Receiver 5.56NATO $434.52 Rock River Arms RRAGE 3G A4 carbine upper comes chambered in 5.56mm NATO. This extruded aluminum upper receiver comes with a port door and no forward assist. Additionally, this upper is equipped with... Add to Cart Add to Cart Add to Wish List Add to My Wish List Create New Wish List
