Polarstar F2 V2 HPA Conversion Kit for M4/M16

Features

• Extremely lightweight and compact design
• Dual solenoid design allows for open and closed bolt firing
• F2 FCU with LCD allows for easy tuning
• Spring loaded nozzle provides consistent loading force
• Lightweight one piece poppet valve can operate at lower pressures
• Easily adjustable FPS can be used for both CQB and field use without having to change nozzles