Retro Arms CNC HPA V2 Gearbox PolarStar Engines 2 in Weight: 11

2 in Weight: 11

The basepad’s heel is angled to be able to act as a monopod during supported shooting and

Metal notch spacer: slide the inside of the metal parts is receiving the burden at the time of the slide open

The new i5 goggle system is an aggressive

Front and rear fiber optic sights

Retro Arms CNC HPA V2 Gearbox PolarStar Engines 2 in Weight: 11This shell is machined just for HPA parts. The price is lower due to the reduced machining time (no need to accommodate AEG parts) and because no spring guide is included. These Gearbox Shells are fully CNC machined from a block of 7075 T6 Aluminum. This material is very strong and can endure a ton of stress. Anodized black for corrosion resistance. Comes with screws.