PolarStar Fusion Engine™ Poppet

The Poppet Valve controls air flow through the Fusion Engine™. Available in different levels of restriction, the poppet you choose determines whether your build leans toward higher air efficiency or higher velocity.

Standard – Black

The Black Poppet is the highest flowing valve available for the Fusion Engine™ and is the valve the engine ships with standard. It gives you the widest range of velocity adjustment by simply swapping nozzles to shift your rifle's velocity range up or down in large increments.

Low-Flow – Red

The Red Low Flow Poppet is the mid-level restriction valve, offering a good blend of power and efficiency.

Low-Flow – Gold

The Gold Low Flow Poppet is the most restrictive of the Fusion Engine™ poppet valves, maximizing air efficiency.

Each poppet includes the retainer O-ring.