Balystik FCU Wire Harness for Polarstar (M4 version)

The Balystik Wire Harness is a high-quality wiring solution designed to connect your Fire Control Unit (FCU) to the rest of your HPA system. This specific version measures 34 cm in length and is tailored for use with M4-style platforms, making it an ideal fit for one of the most common airsoft configurations.

Compatible with PolarStar Jack, F1, F2, and Fusion Engine, this harness is built with durable materials and precise connectors that ensure a solid, long-lasting connection. Whether you're upgrading or building a new HPA rifle, this cable offers reliability you can count on during every game.

Thanks to its optimized length, it fits perfectly inside most buffer tubes or receiver compartments without excess slack or tension, simplifying your build and maintenance.

 Compatibility:

• PolarStar FCU (Fire Control Unit)

• PolarStar Jack

• PolarStar F1

• PolarStar F2

• Fusion Engine

 Key Features:

• 34cm length – ideal for internal M4 wiring

• Durable construction and high-quality connectors

• Easy installation and replacement

• Designed for stable performance under demanding conditions

Whether you're switching from AEG to HPA or upgrading your current system, the Balystik Wire Harness provides a clean, efficient, and dependable connection for your FCU.