The reduced length of the SS190 projectile allowed it to be used more conveniently in the Five-seveN, which was under development at that time. 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 original 5.7×28mm cartridge, called the SS90, went into production with the P90 in 1990. įN Herstal was the first small arms manufacturer to respond to NATO's requirement FN started by developing a shoulder-fired personal defense weapon, the FN P90, along with a small caliber, high velocity 5.7×28mm cartridge type.
Developed as a companion pistol to the P90, the Five-seveN shares many of its design features: it is a lightweight polymer-based weapon with a relatively large magazine capacity, ambidextrous controls, low recoil, and the ability to penetrate body armor when using certain cartridge types. The P90 was introduced in 1990, and the Five-seveN was introduced in 1998 as a pistol using the same 5.7×28mm ammunition. The Five-seveN pistol was developed in conjunction with the FN P90 personal defense weapon and the FN 5.7×28mm cartridge. The pistol is named for its 5.7×28mm (.224 in) bullet diameter, and the trademark capitalization style is intended to emphasize the manufacturer's initials- FN. The FN Five-seveN is a semi-automatic pistol designed and manufactured by FN Herstal in Belgium. "Three-dot" type: fixed or adjustable 177.8 mm (7 in) sight radius.
Five-seveN USG with twenty round magazine fitting 5.7×28mm cartridges