The PolarStar UGS™ (Universal Gas Stock) allows you to enjoy the benefits of an HPA system without being tethered to an external HPA tank via a hose. It can be used with any PolarStar HPA engine, such as the F2™, F1™, or JACK™, and is compact enough to work with other similar HPA cylinder systems. The buffer tube mounts of this product are dimensioned according to VFC HK417 receiver specifications, making it compatible with almost any VFC HK417-compatible AEG receiver, such as the VFC M110.
The UGS unit’s built-in regulator uses the same technology as PolarStar’s other compact regulators. The UGS regulator provides an adjustable pressure range of 40–130 psi, easily adjusted with a 3/32-inch hex key. If you want to increase the regulator’s output, you can install the PolarStar High Pressure Spring (part number 10000692)*, which raises the maximum output pressure to approximately 200 psi.
Features
- Includes G&P R3 stock mounted over a 13Ci air tank
- Compatible with VFC HK417-compatible AEG receivers
- Simple timestamp/lock for competition use
- Adjustable stock length
- Same internal design as other PolarStar compact regulators (Micro Reg GEN2, CGS). Regulator components are interchangeable with the Micro Reg Gen2
- Not compatible with the Fusion Engine™ system
Package Includes:
- PolarStar UGS G&P R3 M4 stock
- PolarStar UGS VFC HK417 parts kit
- Does not include HPA tank
