Striker-fired semiautomatic pistol chambered in chambered in 10mm – 4.7-inch cold hammer-forged stainless-steel barrel with recessed target crown is threaded 0.578-28 for mounting a suppressor or compensator; thread protector with integrated O-ring to minimize loosening during use – Consistent approximately 6-pound trigger pull – Includes one (1) 15-round magazine and one (1) 22-round extended magazine – Stainless-steel slide with patented FN Low-Profile Optics-Mounting System; includes guarded slide cap that protects the rear sights adapters and screws for the direct-mounting of most major optics footprints – Drift-adjustable suppressor-height night sights that co-witness with installed miniature red dot optic MIL-STD-1913 accessory mounting rail Fully ambidextrous magazine release and slide stop lever – Includes two (2) interchangeable backstraps (small and medium)