This is a PREORDER for our HPA CRBN Uppers. The ETA is the 4th week of September!
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 Gen 3 has been upgraded to include 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:
- 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
- Polarstar Fusion Engine (Drop-In)
- F2, Jack, Inferno, N7, Pulsar etc. (Requires CRBN Gearbox)
- G&G polymer (SSG1, ARP9). Metal (ARP556) and Lancer Tactical lowers (drop in fitment)
- Monk Customs and EMG F1 lowers (with modifications)
- MAXX Hopup Chambers (ATPRO, M4P, M4A) and Retro Arms hopup chambers (drop in)
- G&G Stock Hopup, Lancer Tactical Stock Hopup, Prowin Hopup (With modifications)
- AirTac Customs CRBN Gearbox