PolarStar CGS CO2 Gas Stock Combo Kit | HPA Air Stock
The CGS stock by PolarStar allows you to get the performance of an HPA system without being tethered to an airline or having a tank screwed to the back of your airsoft rifle. Externally, the CGS is manufactured using a real Milspec buffer tube blank that's been modified to conceal the regulator and CO2 cartridge. The adjustable regulator has an output pressure range of 40-130psi and can be tournament locked using a zip tie. The kit also includes a removable CO2 insert which can be easily installed by sliding it into the back of the buffer tube and screwing it into the regulator's ASA threads. This modular design allows you to swap between inserts so you can use 12g CO2 or the magnum sized 33g cartridges. Each insert also features an integral expansion chamber, an anti-siphon system, and a 5-micron filter. The internal check valve also prevents gases from escaping the expansion chamber when performing combat reloads to conserve CO2. This allows several full-power shots even while when the CO2 cartridge has been removed.
The CGS can be used with any cylinder PolarStar conversion kits such as the F2, F1, or JACK and other similar HPA cylinder systems on the market. Not compatible with Fusion.
This system is available with two different output configurations depending on your airsoft rifle design:
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)
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)
If there is a particular AEG stock that you would like to use and it will not fit on a standard Milspec buffer tube, please see the Universal Gas Stock. The CGS has the same CO2 options as the UGS, but in a modular configuration that has been designed to fit all Milspec stocks as well as most AEG stocks.
CGS Stock Features:
HPA performance using CO2 without the line
Switch between 12g and 33g cartridges through the use of interchangeable CO2 Inserts (included)
Adjustable regulator w/ output pressure range of 40-130psi
Machined from a Milspec AR buffer tube blank
CO2 inserts feature integral expansion chamber, anti-siphon system, 5 micron filter and check valve to conserve CO2
Zip-tie tournament lock
Not compatible with Fusion Engine or with the KWA AEG 3.0 Bodies.
Specifications:
Min Output Pressure: 40 PSIMax Output Pressure: 130 PSI (~200 PSI with HP Spring, p/n 10000692)*Max Input Pressure: 900 PSIAverage shot count: 12g = ~180 shots, 33g = ~500 shots (using F2 at 1.5J w/ .28g and 6.05x380mm)
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.
More About PolarStar and Why We Carry Them:
PolarStar Precision Airsoft was formed in January 2009 to fill a need for high quality, precision manufactured airsoft components designed for performance and longevity. The 2011 release of the patented Fusion Engine HPA system marked a change in direction for PolarStar. The focus shifted from developing upgrade components within the constraints of existing systems to developing innovative HPA systems and accessories which replace the aging AEG technology.
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