A vision brought to life by AirTac Customs and SpeedQB®, the ALU CRBN Upper is a durable, functional, and stylish upper receiver for your V2 HPA builds.
We've upgraded all the 3D-printed parts with black anodized aluminum for a beautiful finish and unmatched durability. We've also added fiber-optic front and rear sights for faster target acquisition.
All uppers are cross-compatible, so you can swap your tubes and parts between any of your CRBN Gen 2 uppers!
This ALU CRBN Gen 2 Upper includes:
ALU CRBN Gen 2 Upper:
- CNC Machined 6061 Aluminum
- Black Anodized
- 8 modular pieces for custom color schemes
- Genuine Lightweight Carbon Fiber (Gloss or Matte Black)
- Fiber Optic Sights (Green and Red)
- Polishing cloth
- Polarstar Fusion Engine (Drop In)
- Any V2-compatible HPA engine (F2, Jack, Inferno, N7, etc.) (Requires CRBN Gearbox)
- Designed for G&G polymer lower receivers (SSG1, ARP9). Fitment possible for Monk lowers and EMG F1
- CRBN Uppers are EXCLUSIVELY compatible with MAXX Hopup Chambers (ME, M4P, M4A)
- Some fitment may be required