The cylinder itself will crack and that causes it to spin in its mount. You could drill it out, it will need to be replaced anyway. If you drill out the cylinder, manually turn the latch and get in, remove the whole lock and you can replace the cylinder. the parts are available, but you will have a new key to go with it.If it matched any other locks then you end up with two similiar but different keys.
Check this thread before you do anything----
http://www.airforums.com/forum...hlight=bargman