I wouldn't use a regulator that was damaged by a fall like that. In my mind there would be issues besides the visable damage that could bite you at a later time. With it being damaged I don't think MicroMatic will replace it but I may be wrong. They are a stand behind thier product type of company but with the other damage to the regulator...
Semper Fi,
The Gunns
"Beer is proof that god loves us and wants us to be happy" - Benjamin Franklin
Im a
MicroMatic Beer Fanatic! Are you?