The Upper, Lower, Hand Grip, 16" Rail, and angled fore grip are all made by F-1 Firearms. I had it custom anodized purple with green splash to match my paintball gun.
The firearm is skeletonized and is all aluminum.
Geissele Super Dynamic 3 Gun (SD-3G) Trigger JP Silent Captured Spring - Gen2 F1 Firearms 16in .223 Wylde Spiral Fluted Barrel - 1/8 twist F1 Firearms Durabolt BCG - Nickel Boron Radian Raptor Ambidextrous charging handle