Five-seven

The Five Seven is a semi-automatic pistol that appears in Call of Duty: Modern Warfare 3.

Campaign
The Five Seven appears in the mission Turbulence and Mind the Gap.

Multiplayer
The Five Seven is unlocked at Level 58 in Modern Warfare 3's multiplayer.

Survival Mode
The Five Seven is one of the starting weapons for Survival Mode. You start off with this gun in the first four survival maps, Resistance, Village, Overpass and Underground.

Trivia

 * It is held in one hand, similar to the ASP in Call of Duty: Black Ops, and the G18 in Call of Duty: Modern Warfare 2.