The CZ Duty 4.0F is a striker-fired semi-automatic pistol on a full-size frame, chambered in 9MM, with a serialized chassis that lets you move the core of the gun between compatible grip modules. Its 4.00" barrel is cold hammer-forged, and the nitride finish helps the slide resist wear and corrosion. The optics-ready slide takes RMR, RMSc, DeltaPoint Pro and Holosun K footprints without adapter plates, so a red dot mounts straight to the slide with the included pin set. The H3 tritium night sights sit low enough for a lower-third co-witness, which keeps your iron sights usable behind a mounted red dot.

Slide and magazine releases are fully ambidextrous, so the controls work the same from either hand, and this configuration has no manual safety. The patented striker-fired trigger offers smooth travel, a crisp break and a short, easy-to-feel reset for controlled follow-up shots. Three interchangeable grip modules let you tailor the fit to your hand, and the pistol ships with one 19-round magazine and one 17-round flush magazine. The frame is black fiberglass-reinforced polymer, while the nitride-finished slide carries enhanced serrations that give your hand a better hold when you work it.

• Brand: CZ
• Model: Duty 4.0F
• Caliber: 9MM
• Barrel Length: 4.00" cold hammer-forged
• Capacity: 19 Rds (19-round and 17-round magazines included)
• Action: Striker-fired semi-automatic
• Optic Ready: Direct mount for RMR, RMSc, DeltaPoint Pro, Holosun K
• Finish: Black frame, nitride slide