We lead with lever guns and single actions, but even a six-gun house keeps one modern 9mm on the shelf, and CZ's new DUTY 4.0 is the one we picked. It is the newest striker-fired pistol in a family that started with the CZ 75 and continued with the P-10. The serial number sits on an internal modular chassis, the grip frame is fiberglass-reinforced polymer, the barrel is 4 inches and unthreaded, and the sights are fixed. The slide is cut for direct-mount red dots.

For the Fort Worth, Amarillo and San Angelo crowd, the Oklahoma City, Tulsa and Guthrie folks, and anyone up around Cheyenne and Cody, it is a fair trade-off next to a revolver: 15+1 in the DUTY 4.0 C compact or 17+1 in the F full-size, a 5.6-pound SFDA trigger with a 4 mm reset, and the option of an MS model with a manual thumb safety for those who like a lever under the thumb.

Three things define the DUTY 4.0. First, a registered modular chassis: the registered part is inside, the frame module around it is modular. Second, the trigger, a striker SFDA rated at 25 ± 4 N (5.6 ± 0.9 lbs), 4 mm (0.16 in) reset, 9 ± 1 mm (0.4 ± 0.04 in) travel, which is short and repeatable for a service pistol. Third, a direct-mount optics-ready slide, shown by CZ with Holosun, Aimpoint and Shield dots fitted, so a dot sight sits low without a stack of plates.

Capacity on the full-size is 17+1 standard and 19+1 with the extended base plate. Height 143 mm (5.6 in), empty weight 780 g (27.7 oz). It is the duty-belt, range and home-defense version of the line, and the one most shooters find easiest to shoot well.

No external safety here. The firing pin block, trigger safety and drawbar safety handle drop safety, and the holster handles the rest. CZ sells the same gun with a frame-mounted lever as the MS model.

Who is it for: home defense, duty use, competition and long range sessions where the extra grip and two more rounds matter. If you already shoot a P-10, the DUTY is the next step in the same family, with a new chassis and the optics done right.

We ship to FFL dealers nationwide. Name the dealer you want at checkout and the DUTY 4.0 goes to them; your dealer applies your state's law at pickup, whether that is a permit, a wait or only the federal background check. Live price and availability are confirmed as you order.

Questions buyers ask: How is the DUTY 4.0 different from a CZ P-10? The DUTY 4.0 is CZ's newer generation: a serialized modular chassis, a refined SFDA trigger and a direct-mount optics slide. CZ has not confirmed that P-10 magazines fit. Is there a version with a thumb safety for someone used to a single action? Yes. The DUTY 4.0 C MS and F MS add a manual thumb safety to the standard internal safeties. How many rounds does the CZ DUTY 4.0 F hold? 17+1 with the standard magazine and 19+1 with the extended base plate.