I am actually a Glock armorer. Yes, you can fire one underwater, but if you do there are a few things you better make sure to do if you plan on trying this. If you don't, your handgun could actually blow up. First, make sure you charge the handgun underwater to make sure the barrel is full of water, otherwise there is too much pressure in the barrel the round must overcome due to the air inside it. You also should replace the spring clips which are attached to the firing pin assembly. This piece should be replaced with the ones which are grooved for water. These are available only to Navy Seals (so I am told), but you can easily groove your own. Basically, I would not try it without switching/ grooving the spring clips. They advertise that this gun is firable underwater, but they fail to say what you need to do to do it right.
sharkman
:guitar: