APS EMG F1 BDR-15-3G Full CNC Metal Receiver Set
 
F1 Firearms BDR-15-3G Upper and Lower Receiver
Fits Ambidextrous V2 Gear Box made by APS only. 
Compatible to EMG F1 Firearms Guns  / EMG Falkor / APS Phantom Extremis Guns / APS ASR Series Guns
F1 Licensed Product