Polarstar Fusion Engine V2 Gen 3 Drop-In Kit

This is a complete HPA drop-in that replaces an AEG gearbox. It is the most adjustable system we produce with the widest range of adjustment in both velocity and rate of fire. The Fusion Engine has a fully adjustable FCU which allows you to adjust the poppet valve (firing air) and nozzle (feeding) independently for full control over both the loading time and air volume used.

• User selectable Semi/Full Auto, Semi Auto Only and Variable Burst modes.
• Open Bolt and Closed Bolt firing modes.
• Independently adjustable velocity and cyclic rate.
• Instant trigger response. Faster than an AEG with a Li-po battery