Air Venturi Avenge-X Tactical Stock, Tube Compatible with Air Venturi Avenge-X rifles with 210cc air tube The 210cc tube is not included with this kit. If you are converting from a bottle version, you will need to purchase PY-A-13402 as well. If you are converting a bullpup Avenge-X to this Tactical stock variant you will need the trigger assembly and barrel band, be sure to pick up PY-A-16471 (trigger) and PY-A-13403 (barrel band) as well. Includes mounting screws needed for installation (not pictured)