I've Googled a bit and have come across a wide range of prices. I've seen the Maritime Firing Pin on sale for around $30. But then there are kits for the entire conversion that cost over $100? What is needed to fully convert my Glock to be able to fire rounds underwater? And why don't I hear more people talking about this? Is this is a bad mod? Does it make the gun less reliable? Is it even practical? It's unlikely I'd ever be in a situation where I would need to shoot something from under water, but if I could spend $50 or $100 to make it have that ability without losing its on-ground reliability, it would say "why not?".