This is the adapter you will need for attaching a 13ci HPA tank to your Tippmann Omega PV Airsoft Rifle (Tank Not Included). Once installed, a 13ci tank can screw into the female threads of the adapter. The included adjustable/collapsible shoulder stock will fit perfectly over a 13ci tank. 

Features:

• Increased shots per tank when compared to 12 gram Co2 cartridges 
• Adjustable shoulder stock - designed for 13ci HPA tanks
• Lightweight, low profile design