HPA CRBN Uppers are a sleek way to turn any build into a lightweight beast, made with genuine carbon fiber for strength and durability.
The HPA CRBN Uppers feature dual hopup windows, fiber-optic back sights, perfect fitment, and updated threads. Plus, a reduced price to increase accessibility!
All uppers are cross-compatible, so you can swap your tubes and parts between any of your CRBN uppers!
This AirTac Customs HPA CRBN Upper Includes:
HPA CRBN Upper:
Lifetime Warranty for breakage / defects
CNC milled Carbon Fiber and ABS Polymer
Genuine Carbon Fiber tube
Fiber optic front and rear sights for fast target acquisition
Dual hopup windows for on-the-fly adjustments
Perfected drop-in fitment on a G&G lower with a Maxx hopup
Included Fiber Optics Rods (Green and Red)
Available in Glossy Black, Matte Black, Red, Blue, Purple, Silver, and Gold tube colors
Compatible with:
Polarstar Fusion Engine (Drop-In)
F2, Jack, Inferno, N7, Pulsar etc. (Requires CRBN Gearbox)
G&G polymer(SSG1, ARP9) and Lancer Tactical lowers (drop in fitment)
Metal Lower ARP556, Monk Customs and EMG F1 lowers (with modifications)
