Product Review
This Up for sale is a device that allows the use of 12 gram CO2 cartridges in any marker with a standard ASA tank thread. Nothing elaborate about using it. You just attach the front piece to the standard ASA, slip a 12 gram CO2 cartridge in the rear tube, and tighten. The cartridge is pierced and the CO2 flows into the marker...










![100 Polyurethane CO2 / HPA Tank O-Rings (90 Durometer) [RED]](https://m.media-amazon.com/images/I/41-85CfblZL._SL75_.jpg)
