KA Tech M4 HPA Polarstar

I am selling a KA Tech M4 with HPA Polarstar system. I am giving away the complete package with replica, tank, regulator and hose.
This replica is a beast and has a stunning look. Nothing is original left, everything has been rebuilt: it features a blue speed trigger with a fantastic feel, skeletonized carbon upper and handguard, blue IGL, stubby stock, carbon stock, Prowin hop-up, brand new wiring, and Polarstar FCU.
The package includes the HK TANK 48/3000 cylinder, the Ninja LPR regulator, the blue Amped hose and the original stock upper.
The viewfinder seen in the photo is not included in the sale.