-Basics:
Type        : Silencer
Usage       : Decreases firing noise

-Tactical/Comments: 
With a silencer you can surprise an enemy easily. The sound is greatly reduced when in use.  Your muzzle will also be hidden. You can usually get quite a few shots off with out the target realizing they are even being shot at, let alone where it's comming from.  Especially in a nice dark corner.
-As seen in:
Silencers can be found in many action-movies.  Most Bond movies, such as Dr. No, Boondock Saints, and Ghost Dog to name a few.