Retro Arms CNC HPA V2 Gearbox PolarStar Engines Metal notch spacer: slide the

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

The fire selector features a safe position

the MDR-X is made of high-quality polymer and aluminum

2 in Weight: 11

Retro Arms CNC HPA V2 Gearbox PolarStar Engines Metal notch spacer: slide theThis 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.