If you want the ability to set beads, and release the full pressure of a PowerTank, or have regulated pressure for tools, this kit is for you. 
Sidearm CO2 Kit from Power Tank. Here's the Sidearm Kit featuring our Sidearm regulator without the CO2 bottles. The Straight Jacket Bottle Sleeve fits 16 or 20 oz. CO2 bottles with 323 On/Off valves. Includes an aluminum valve protector and a carabiner to hang the holster along with a 10 ft. Coiled SuperFlex Hose.
Warning: Not all valves are created equal. If you feel any metal-to-metal contact between your bottle valve and the inside of our regulator Do Not Use. This may ruin your regulator and void your warranty
Note: Pro Series 400 psi Regulator not recommended for use with nail guns.
Details:
Sidearm 160 psi Regulator or 400 psi Pro Regulator
Straight Jacket Bottle Sleeve
10 ft. Coiled Hose
Fittings