History

The FN Five-seven, trademarked as the Five-seveN, is a semi-automatic pistol designed and manufactured by FN Herstal in Belgium. The pistol's name refers to its 5.7-mm (.224 in) bullet diameter, and the unusual capitalization style is intended to emphasize the manufacturer's initials—FN.
 
The Five-seven pistol was developed in conjunction with the FN P90 personal defense weapon and the 5.7×28mm cartridge. The P90 was introduced in 1990, and the Five-seven was introduced in 1998 as a pistol using the same 5.7×28mm ammunition. As a companion pistol to the P90, the Five-seven shares many of the same features: it is a lightweight polymer-based weapon with a large magazine capacity, ambidextrous controls, low recoil, and the ability to penetrate body armor when using certain cartridge types.
 
Sales of the Five-seven were originally restricted by FN to military and law enforcement customers, but since 2004, the pistol has also been offered to civilian shooters for personal protection, target shooting, and similar uses. Although offered only with sporting ammunition, the Five-seven's introduction to civilian shooters was met with strong opposition from gun control organizations such as the Brady Campaign, and the pistol has been subject to ongoing controversy in the United States.
 
The Five-seven is currently in service with military and police forces in over 40 countries throughout the world. In the United States, the Five-seven is in use with numerous law enforcement agencies, including the U.S. Secret Service. In the years since the pistol's introduction to the civilian market in the United States, it has also become increasingly popular with civilian shooters.

The Five-seven pistol's 5.7×28mm ammunition was originally developed by FN Herstal in the 1990s, alongside the Five-seven and the FN P90 personal defense weapon. The original 5.7×28mm cartridge type, called the SS90, was introduced with the P90 in 1990. This cartridge type was discontinued in 1993, and replaced with the 5.7×28mm SS190, which used a heavier and slightly shorter projectile weighing 2.0 g (31 grains). The reduced length of the SS190 projectile allowed it to be more conveniently used in the Five-seven, which was under development at that time. In 1993, Jean-Louis Gathoye of FN filed a United States patent application for a delayed blowback operating system intended for the Five-seven pistol. The following year, U.S. Patent 5,347,912 ("Elements for decelerating the recoil of the moving parts of a fire arm") was received.
 
In 1995, FN officially announced the development of the Five-seven pistol, and a prototype of the pistol was publicly displayed the following year. With some improvements, a double-action only variant of the pistol went into production in 1998, and a single-action variant called the Five-seven Tactical was introduced shortly afterward. The Five-seven first entered service in May 2000, when the Cypriot National Guard (Greek: Εθνική Φρουρά) purchased 250 pistols for their special forces group.
 
 
Historically, sales of the Five-seven pistol were restricted by FN to military and law enforcement customers, but in 2004 the new Five-seven IOM variant was introduced and offered to civilian shooters, for use with 5.7×28mm SS192 ammunition. The IOM variant incorporated several modifications to the weapon's design, such as the addition of an M1913 accessory rail, a magazine safety mechanism, and fully adjustable sights. Although offered only with sporting ammunition, the Five-seven's introduction to civilian shooters was met with strong opposition from gun control organizations such as the Brady Campaign.
 
Further development of the Five-seven pistol led to the introduction of the Five-seven USG variant, which was approved by the ATF as a sporting firearm in 2004. The USG variant incorporates a conventionally-shaped square trigger guard, a reversible magazine release, and other minor changes. This is the current Five-seven pistol offered by FN Herstal, but different frame finishes and sight options have also been made available.

Singleplayer/Spec-Ops

The Five Seven appears in the missions "Turbulence" which Agent Harkov and the other FSO agents used before the hijacking, and "Mind the Gap".

The Five Seven is one of the starting weapons for Survival Mode. The player starts off with this gun in the 1st Tier survival maps; Resistance, Village, Interchange, and Underground. Also, the player starts off with this gun along with the M16A4 in the 4th Tier Maps. The Five Seven's low damage profile, while not noticeable in Multiplayer, makes it one of the poorest handguns in Survival, where enemies frequently have more than 100 health.

Multiplayer

The Five Seven is unlocked at Level 58 in Modern Warfare 3's multiplayer. It has the lowest damage of any handgun in the game, but still enough to kill in three shots at close range (similar to the P99 and USP .45) and has the exact same recoil as these two pistols. It also features the largest magazine size for any handgun and the magazine enters the weapon almost instantaneously when equipped with Akimbo, making reloads nearly instantaneous when reload cancelling.

Attachments

Attachments	Challenges	Icon
Silencer	Get 40 kills with a Silencer attached to a Pistol.
Akimbo	Get 40 kills using Akimbo on a Pistol.
Tactical Knife	Get 40 kills using a Tactical Knife on a Pistol.
Extended Mags	Get 40 kills with Extended Mags attached to a Pistol.

Challenges