Polarstar Fusion Engine Gen.3 Drop in Kit - V2 M4 Slide Catches Faster than an AEG with

Faster than an AEG with a Li-po battery

reduce wear

1000 lumens is bright enough to light up any dark CQB area

Great performance out of the box

Semi Auto Only

Polarstar Fusion Engine Gen.3 Drop in Kit - V2 M4 Slide Catches Faster than an AEG withThis 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