The FNS is the result of years of research incorporating the most precise engineering and product development to bring the most highly-advanced striker-fired pistol to the American law enforcement and personal defense market. The FN FNS is a true double-action pistol with a pivoting hinged trigger featuring an exceptionally crisp break and a short travel to reset. The matte black polymer frame comes with four interchangeable backstraps to customize grip fit and is designed with a low-bore axis for reduced felt recoil and enhanced control. The fully-ambidextrous controls are shaped for easy access without snagging on holsters or clothing. The contoured frame-mounted manual safety is ideally placed for positive operation by either thumb. The FNS offers a hammer-forged stainless steel barrel. The slide features front and rear cocking serrations and is topped with three-dot fixed night sights. The FN FNS also is equipped with steel frame rails that can be easily replaced.