View Single Post
pyramid's Avatar
Originally Posted by Stereodude View Post
There are a few other differences like the ability to be fired underwater, or while very wet.

I figured HK probably has some beefier parts thrown in as well but I thought that capability was primarily a result of the gas piston system because you don't have to worry about the crazy overpressure of trying to fire completely underwater or with a partially blocked barrel being directed all the way back to your gas key/BCG/etc. The gas piston setups I'm familiar with usually vent the extra pressure at the gas block or gas tube once the piston has moved far enough to operate the bolt.

Not sure if that is correct, but that's what I was thinking.

Last edited by pyramid; 06-06-2009 at 08:19 PM..
Old 06-06-2009, 04:06 PM pyramid is offline  
Reply With Quote