Send it back to the manufacture or contact the manufacture to find out who repairs your BB gun.
If it doesnt turn over it can be
my suzuki vitaramodel 1999,engine turn over but doesnt fire
if it doesnt turn over at all the starter is bad if it turns over but doesnt fire it could be ignition or belt related check wit a qualified mechanic shop
No it will not rust as it doesnt have iron in it, but it may corrode and turn black over time
if it does not turn over and no clicking noise but headlights on, check start fuse and relay if it doesnt turn over and clicks probable starter solenoid
usually you can tell when your car doesnt turn or or doesnt turn over its because of your starter sometimes its not the starter it could be a low battery or corroded wires leading to the starter check that first;
Does it turn over? Does it have spark? Fuel?
that's a sure sign of a dead battery.
It could be the fuel relay is stuck.
practice
*It is a closet that if you have a guess that comes over you can turn it in to a guest bedroom
Did you try a new alternator?