i bought this oil for my tippmann a-5 because i used the oil that came with the a-5. after using this oil my markers bolt slide smooth. But when i went to scary creek paintball to play my gun would not recock. i took my a-5 apart and i wiped all of the oil off of the bolt and the power tube. then put the gun back together andit worked fine. but after about 200 shots and it started doing it again. i took it apart once again and wiped the oil off and it worked for about another 200 shots. i just got mad and took the gun back to dicks. got my money back. then i bought an ion. when i got the ion i put the hopper on and the feedneck got stripped out. i then took the ion back to gander mountain. i have really bad luck. i think i will just go back to the tippmann custom pro camo act.
Let just say you might as well have dumped sand into the barrel and played with it because it would have done the same thing for the gun broken it. if you want to screw up your marker this is a must have item.