Walther PPQ NAVY
At DSA ’12 Walther was exhibiting their Walther PPQ NAVY 9mm pistol.
The NAVY version is designed for use in situations where the pistol may become immersed and/or fired in water. A hole and guides in the striker channel, allowing water to be drained or pushed out, along with a stronger striker spring allow it to be used when completely flooded.
In Germany the NAVY Tactical version (threaded barrel) can be bought with a matching suppressor. Those lucky Germans!