FN 503

The FN 503 is a polymer frame striker-fired subcompact semi-automatic pistol manufactured in Columbia, South Carolina, by FN America, a division of FN Herstal. Introduced in March 2020, it is chambered in 9×19mm Parabellum and is intended for concealed carry.
Features.
The FN 503 is a striker-fired handgun with a stainless steel slide. Subcompact in size, its overall length is with a barrel length of and a width of . The three-dot iron sights are low-profile, while trigger pull averages . Magazines are either 6-round with a pinky extension or 8-round with a grip sleeve.
The FN 503 uses the "design, performance and reliability standards" of the FN 509, a full-sized pistol introduced in 2017.