PolarStar UGS™ Stock Systems & CO2 Inserts

PolarStar UGS Universal Gas Stock Combo Kit | HPA Air Stock

With the PolarStar UGS™ (Universal Gas Stock) you can now get the performance advantage of a HPA system without needing to be tethered to a remote air rig and still retain the likeness and function of a traditional adjustable AR-15 stock. It can be used with any of the PolarStar cylinder conversion kits such as the F2™, F1™ or JACK™ and is compact enough that it can also be used with other similar HPA cylinder systems on the market.

The UGS™ Polarstar stock features an integral regulator which follows the same design as the highly regarded PolarStar Micro Reg and delivers the same lightening fast performance. This regulator has a output pressure range of 40-130psi which is easily adjusted using a 3/32 allen key but can be locked out using a standard chrono zip tie which blocks the adjustment screw.

The HPA version of this system is designed to accept 13ci HPA tanks and R3 buttstock (included) but it can be reconfigured for additional gas input options to include PolarStar UGS CO2 Inserts and Mil-Spec diameter HPA cylinders. Alternatively, you can select 12g or 33g, which do not come with the stock, but allow for you to use standard milspec stocks.

The Type 1 is designed for use with M4 series AEG receivers that accept threaded buffer tubes such as the G&P R3 series.   Please be aware that the Elite Force 416A5 does not work natively.  It will require rethreading of your receiver to properly fit.  This is where the buffer tube itself threads into the receiver. (Modification of the gearbox is required)

The Type 2 is designed for use with traditional TM Spec M4 series AEG receives. This is where the buffer tube slides onto a stock tail on the back of the receiver and is secured by a bolt. (Modification of the receiver and gearbox is required)

• The HPA Version of this Includes R3 buttstock pictured. The 12g and 33g versions do not come with the R3 Buttstock. The 12g and 33g version come with the milspec rail, whereas the HPA version comes with the 2" HPA Rail.  Please double check which kit you are needing. 

• Able to use both standard output HPA tanks as well as SLP (SLP recommended).

• Simple zip-tie lockout/tournament lock.

• Adjustable length of pull.

• Same internal design as the Micro Reg™. All internals are interchangeable between Micro Reg™ GEN 2 and UGS™.

• The UGS™ regulator uses only 2 o-rings, promoting reliability and ease of maintenance.

• Compatible with all standard 2" diameter tanks and most 2" tank stocks used in paintball applications

• Includes castle nut and all mounting hardware.

• Not compatible with Fusion Engine™.

Specifications:

• 40-130 PSI Output Range
• Works with HP or SLP Tanks. SLP Recommended.
• Simple zip-tie lockout/tournament lock
• Adjustable length of pull for your Stock
• Same internal design as the Micro Reg™. All internals except piston are interchangeable between Micro Reg™ and UGS™.
• The UGS ™ regulator uses only 2 o-rings, promoting reliability and ease of maintenance.
• Compatible with all standard 2" diameter tanks and most 2" tank stocks used in paintball applications.
• Includes castle nut and all mounting hardware.
• Not compatible with Fusion Engine™ due to space requirements.
• Tank Not Included

PLEASE NOTE: This system will not be compatible with the KWA AEG 3.0 Bodies.

PLEASE NOTE: The Type 1 systems do not have a barb and utilize a push in fitting. See excerpt from the instruction manual below.