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...

allows the use of 12 gram CO2 cartridges in any marker with a standard ASA tank thread.

Cross section shape: Round. Pattern: Solid. Shape: Round. Style: Classic. Sport Type: Paintball. Color: Black. Date First Available: November 25, 2013. Best Sellers Rank: #396,668 in Sports & Outdoors. Customer Reviews: 4.1 out of 5 stars 185 ratings 4.1 out of 5 stars. : B00GW9KFP8. Sport Type: ?Paintball. Style: ?Classic. Manufacturer: ?GFSP Outdoor Sports. Color: ?Black. Package Weight: ?0.07 Kilograms. Item Package Dimensions L x W x H: ?7.3 x 2.1 x 1.3 inches.