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 Tokyo Marui receiver specifications, making it compatible with almost any M4 AEG receiver.
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. For higher output pressure, you can install the PolarStar High Pressure Spring (part number 10000692)*, which increases the maximum output pressure to approximately 200 psi.
Features
- Includes G&P R3 stock mounted over a 13Ci air tank
- Compatible with Tokyo Marui M4 AEG receivers
- Simple timestamp/lock for competition use
- Adjustable stock length
- Same internal design as other PolarStar compact regulators (Micro Reg GEN2, CGS). Regulator parts 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 Type 2 parts set
- Does not include HPA tank
