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AirTac Customs GEN 4 HPA CRBN Upper 185MM  /  155MM
AirTac Customs GEN 4 HPA CRBN Upper 185MM  /  155MM
AirTac Customs GEN 4 HPA CRBN Upper 185MM  /  155MM
AirTac Customs GEN 4 HPA CRBN Upper 185MM  /  155MM
AirTac Customs GEN 4 HPA CRBN Upper 185MM  /  155MM
AirTac Customs GEN 4 HPA CRBN Upper 185MM  /  155MM
AirTac Customs GEN 4 HPA CRBN Upper 185MM  /  155MM
AirTac Customs GEN 4 HPA CRBN Upper 185MM  /  155MM
AirTac Customs GEN 4 HPA CRBN Upper 185MM  /  155MM
AirTac Customs GEN 4 HPA CRBN Upper 185MM  /  155MM
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  • Load image into Gallery viewer, AirTac Customs GEN 4 HPA CRBN Upper 185MM  /  155MM
  • Load image into Gallery viewer, AirTac Customs GEN 4 HPA CRBN Upper 185MM  /  155MM
  • Load image into Gallery viewer, AirTac Customs GEN 4 HPA CRBN Upper 185MM  /  155MM
  • Load image into Gallery viewer, AirTac Customs GEN 4 HPA CRBN Upper 185MM  /  155MM
  • Load image into Gallery viewer, AirTac Customs GEN 4 HPA CRBN Upper 185MM  /  155MM
  • Load image into Gallery viewer, AirTac Customs GEN 4 HPA CRBN Upper 185MM  /  155MM
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AirTac Customs GEN 4 HPA CRBN Upper 185MM / 155MM

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$225.00
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$225.00
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    Introducing the Gen 4 HPA CRBN Uppers - a new level of durability!

    HPA CRBN Uppers are a sleek way to turn any build into a lightweight beast, made with genuine carbon fiber for strength and durability. Our fourth generation proudly sports new CNC Aluminum Skeletonized Front Threads and Sights as well a durable and 40% stronger Katana HPA Frame.

    The HPA CRBN Uppers feature dual hopup windows, fiber-optic front and rear sights, perfect fitment, and CNC aluminum parts. All for the same price!

    All uppers are cross-compatible, so you can swap your tubes and parts between any of your CRBN uppers! 

    This AirTac Customs Gen 4 HPA CRBN Upper Includes:

    Gen 4 HPA CRBN Upper:

    • Lifetime Warranty for breakage / defects
    • CNC machined 6061 Aluminum Front Thread
    • CNC machined 6061 Aluminum Front Sight
    • 40% Stronger Nylon Frame
    • 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)
    • MAXX Hopup Chambers (ATPRO, M4P, M4A), Retro Arms, and Lancer Tactical hopup chambers (drop in)
    • G&G Stock Hopup, Prowin Hopup (With modifications)
    • AirTac Customs CRBN Gearbox