PolarStar Kythera SA Nozzles: Universal Compatibility for Airsoft Upgrades

PolarStar Kythera SA Nozzles are the essential upgrade accessory for airsoft gas systems. They’re designed for players and technicians who tune or customize replicas, delivering precise gas flow by matching nozzle length to the specific build. The system centers on numbered nozzles so you can dial in the right fit across a wide range of models.

• Nozzle Length Variety: A broad set of nozzle lengths is available, each assigned a number to match cylinder length variations across manufacturers. Because different builds can position the hop-up chamber and gearbox shell differently, the numbered system helps you select a length that aligns the cylinder for a reliable gas seal.
• Universal Numbering Across Engines: Once you determine the nozzle number your replica requires, that same number is intended to work across all engines that use the numbered nozzle system, simplifying upgrades and swaps.
• K Prefix for Non-Standard Cylinders: For certain Kythera variants built around non-standard cylinders, a "K" prefix is used. These nozzles share the same profile as standard ones and remain cross-compatible with standard cylinder systems.
• Wide Model Compatibility: The compatibility chart lists common pairings and is supported by a Help Center for full details, reflecting measurements for a broad range of brands and models (e.g., TM, G&G, ICS, VFC, A&K, LCT, CA, JG).
• Clear Markings: Each nozzle is clearly numbered for quick identification, with the #1 nozzle left unmarked due to its high production volume to streamline manufacturing.

Benefits: By selecting the correct nozzle length, you ensure accurate gas delivery and consistent cycling across different replicas and engines. This reduces misfeeds and downtime, helps maintain stable FPS, and makes future upgrades easier—since the same nozzle number works across multiple engines in the numbered system. For models with non-standard cylinders, the K-prefix option preserves compatibility without forcing a different fit. Always consult the compatibility chart (and the Help Center) before purchasing to confirm the right nozzle number for your exact replica.