Polarstar Fusion Engine Gen.3 Drop in Kit - V2 M4 HPA Tanks Lines & Regs *please see pictures of what

*please see pictures of what sights are recommended (Trijicon RMR

Precision CNC out of aluminum for light weight and durability

The CNC Aluminum Guide Rod is machined with precise CNC tolerances from Aluminum for improvements in stability

*ONLY FOR ADVANCED FRAMES

Picatinny Stock Adapter with QD Point

Polarstar Fusion Engine Gen.3 Drop in Kit - V2 M4 HPA Tanks Lines & Regs *please see pictures of whatThis is a complete drop in system which replaces the entire AEG gearbox with a full CNC machined lightweight aluminum chassis. It is the most adjustable system we produce with the widest range of adjustment in both velocity and rate of fire. Being a dual solenoid, closed bolt system so you are able to adjust the poppet valve (firing air) and nozzle (feeding) independently for full control over both the loading time and air volume used. PolarStar