Air Venturi Avenger/ Umarex Origin Barrel Stabilizer .177 .22 .25 Cal. Condition is "New". Shipped with USPS First Class. This helps with your Air Venturi Avenger or Umarex Origin with barrel stabilization, is only designed for use with a pellet gun, non firearm related. I have been told from customers it is the best budget backyard friendly options for the avenger. The device acts as an air stripper/ moderator diverting turbulent air away from the pellet and routing it back to the factory shroud. This is a simple installation, remove your factory end cap and put thin in place of it! This only adds 60mm to the length of the rifle, and has a carbon fiber wrap giving a great look. 100% satisfaction rate so far with these. Have sold over 100 of them. This part is 3d printed, using only high quality materials, with calibrated and high quality machines inside an enclosure ensuring layer adhesion and high strength. This design is not able to be injection molded and is superior to moderators or air strippers that are.