Polarstar Kythera M3 Orifice Screw – .029″
£7.00
The PolarStar Kythera M3 Orifice Screw in .029″ is an airflow control orifice screw for the PolarStar Kythera HPA engine — the .029″ orifice diameter controls the volume of air delivered per shot for velocity tuning in the Kythera platform.
PolarStar Kythera M3 Orifice Screw – .029″
The PolarStar Kythera M3 Orifice Screw in .029″ is the airflow metering component for the PolarStar Kythera HPA engine. The Kythera is PolarStar’s M3 module HPA engine — a self-contained engine that replaces the standard hop-up unit rather than the gearbox. The M3 Orifice Screw is a precision-drilled screw that restricts airflow through the engine’s internal air path. The orifice diameter directly determines the volume of air released per shot — and therefore the velocity output at a given input pressure. The .029″ orifice is a specific diameter within the available range.
Swapping orifice screws is how the Kythera engine is velocity-tuned: a larger orifice diameter allows more air through per shot, increasing velocity; a smaller orifice reduces air volume and drops velocity. Operators change orifice screws to tune the Kythera to their site’s velocity limit or to optimise performance at a specific BB weight. Confirm your Kythera generation and configuration before ordering to ensure this is the correct orifice diameter for your tuning requirement.
- PolarStar Kythera M3 Orifice Screw — .029″ diameter
- Airflow control component for PolarStar Kythera engine
- Orifice diameter determines air volume per shot and velocity output
- Swap between orifice sizes to tune Kythera velocity
- Made by PolarStar Airsoft
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