Specs - Caliber: 9mm - Operation: Double-action - Mag Capacity: 10 Rd. - Weight: 27.9 oz. - Barrel Length: 4.5 - Overall Length: 7.9 - Twist Rate: 1:10 RH - Height: 5.75 - Width: 1.35 - Trigger Pull: 5.5-7.5 lb. - Sight Radius: 5.79 - Primary Features - Striker-fired autoloader - 5.5 to 7.5 lbs. Trigger pull - FN Low Profile Optics Mounting System (U.S Patent No. 10/352654) - Threaded Barrel - Suppressor Height Trijicon 3-Dot Green Tritium Night Sights - SLIDE - FN Low Profile Optics Mounting System (U.S Patent No. 10/352654) - Sight Protecting Slide Cap - External extractor; loaded chamber indicator - BARREL - Cold hammer-forged stainless steel - Recessed target crown - Polished chamber and feed ramp - 1/2 x 28 threaded Barrel - O-Ring retention thread cap - FRAME - Polymer construction with replaceable steel frame/slide rails - Enhanced grip texture which enables faster follow-up shots in all conditions - Interchangeable backstraps - MIL-STD-1913 accessory mounting rail - OPERATING CONTROLS - Fully ambidextrous slide stop lever and magazine release - MAGAZINE - High visibility low-friction follower; polymer base with black finish - SHIPS WITH - Two interchangeable backstraps - Two 10-round magazines - Owner's manual - Locking device - FN logo soft pistol case