I read the previous reviews and I hoped for better. I was looking for a barrel upgrade for my backup gun, a Spyder SE, and found this 14" 2-piece rifled barrel on ebay for $18. It seemed too good to be true. It was. If you get a break you might as well call yourself out, you'll be shooting knuckle balls for the rest of the game. The rifling traps the paint inside and makes it impossible to get out even with a good swabbing. My problems with this barrel started even before I broke a ball, which it does fairly frequently. It couldn't even outshoot my stock spyder barrel which was only 8". I took both barrels out and shot at a target 60' away. The Aero barrel was all over the place, while my stock barrel could consistently hit the target at the relatively close range. It feels almost flimsy in my hands and I feel like I could bend it easily if I tried. When its screwed completely in if I apply even light pressure I can shift the barrel to one side or the other because of the shoddy threads and weak connection where the 2 pieces meet together.
Cheap quality barrel for a cheap price, I wish I still had my Boomstick. Thus far I believe that rifling is overrated and just traps in paint.