The Wraith CO2 Stock gives you the great performance of HPA without the line. Perhaps the biggest resistance to HPA that we have heard from people is that they do not want to carry around a tank or have a line coming out of their gun. The Wraith CO2 stock eliminates both of those! It allows you to run your HPA engine with 12 gram CO2 cartridges completely concealed in the stock.

Wolverine Airsoft WRAITH Co2 Stock for Regular M4 Series (HPA Systems)

Compatibility:
-Stocks: Compatible with most M4 style airsoft guns, Wraith CO2 Stock is a complete buffer tube replacement.
-HPA Engines: Compatible with Inferno Gen1 and Gen2 and most other HPA engines*. For best results, use Wraith with Wolverine Airsoft products.

*If you are using products from other manufacturers, check to make sure that CO2 use will not void your warranty with them.

Technical Highlights
-Approx. 200 shots per cartridge with stock M4 setup
-Proprietary Quick-Change end cap allows you to swap cartridges seamlessly (the record is under 2 seconds).
-Integrated custom Storm regulator.
-Compatible with all Wolverine Airsoft HPA engines.
-Adjustable pressure range of 40-140 psi.