I have a visible cylinder that was shot with a BB gun and am looking for some tips on repairing the damage. The cylinder is otherwise in good shape, tinted blue and has been left intact on the pump. I found the chip, which is about the size of a silver dollar and resembles a sea shell in shape, at the bottom of the cylinder. There is a BB size hole in the cylinder. My question is: Should I try glueing the chip back in place or just glue the BB hole shut? Thanks to all of you who give me some help with this!