Seal the deal on your V3 gearbox
Compression is everything in an AEG, and the Specna Arms aluminium double air-sealed cylinder head is a straightforward way to tighten yours up. Engineered for Version 3 gearboxes, it uses a twin O-ring design to seal cleanly against the nozzle for stronger, more consistent air delivery.
Better compression, steadier FPS
By cutting air loss at the cylinder head, the double seal helps every shot land at a more consistent muzzle energy. That means tighter FPS spreads, better range and a more efficient system overall, whether you are firing semi or full-auto.
CNC aluminium build
Machined from aluminium, the head is durable, lightweight and dimensionally precise for a proper fit inside the shell. It also helps absorb some of the shock of the piston cycle, reducing stress on your internals and extending gearbox life.
The ideal first internal upgrade
Whether you are a new tech opening a gearbox for the first time or a project builder chasing efficiency, this is a low-cost, high-value part. Fit it as part of a compression rebuild alongside a fresh piston head and nozzle.
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