Introducing the ALU Tube HPA Upper: A Lightweight, High-Performance Upgrade

Elevate your airsoft game with the ALU Tube HPA Upper—a revolutionary redesign that replaces traditional carbon fiber with premium anodized aluminum, delivering unmatched durability and a featherlight feel. This limited-edition upper is engineered for players who demand precision, speed, and versatility without compromising on strength.

Key Features & Benefits

• Ultra-Lightweight Design: Crafted from CNC skeletonized aluminum, this upper reduces weight while maintaining structural integrity, ensuring faster handling and reduced fatigue during extended play.
• Dual Hopup Windows: Make on-the-fly adjustments effortlessly, optimizing accuracy and consistency for every shot.
• Fiber-Optic Sights: The front and rear sights feature vibrant green and red fiber optics for rapid target acquisition, even in low-light conditions.
• Modular Compatibility: Seamlessly interchangeable with existing CRBN uppers, this ALU Tube Upper works with a wide range of setups, including:
• Polarstar Fusion Engine (Drop-In)
• F2, Jack, Inferno, N7, Pulsar (requires CRBN gearbox)
• G&G polymer lowers (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 and Prowin Hopup (with modifications)
• AirTac Customs CRBN Gearbox

Why Choose the ALU Tube HPA Upper?

This isn’t just another upgrade—it’s a game-changer. The 155mm inner barrel and strong nylon frame ensure reliability, while the anodized finish adds a sleek, professional look. Plus, with its limited availability, this upper won’t be restocked—grab yours before it’s gone!

Note: Anodizing shade may vary slightly from other AirTac Customs parts.

Upgrade your setup today and experience the difference in performance and style!