watsup guys decided to get back in to paintball a little this year and dug up my DM6 from my gear bag. gassed it up and after one shot immediately heard a leak near the bolt. took the bolt out and saw the back oring was ripped. put a new oring on, gassed it up again and same thing happened. I took the bolt out and inspected inside the body and noticed this slight little nick that I think it's causing the oring to rip once it's pressurized and passes over that nick.
first of all I have no idea how this could've even happened. secondly I'm not sure how this can be fixed. thought of using auto body rubbing compound to hopefully smooth the surface over, but I'm not sure how safe that is to do.
the nick itself is like the size of the tip of a toothpick. if anyone has any help or suggestions I'd greatly appreciate it so that I can get this puppy up and running again