CZ DUTY 4.0 F MS
About this product
Frames are the whole business here, so a pistol whose frame is not the serialized part deserves a close look. CZ built the DUTY 4.0 around a serialized internal chassis, leaving the fiberglass-reinforced polymer grip frame as a modular component. It is a striker-fired 9x19mm sold as the C compact or the F full-size, with MS versions of each adding a manual thumb safety to the firing pin block, trigger safety and trigger bar safety.
For a customer who wants a factory gun beside the frame kits, the rest of the sheet is straightforward. The barrel is 4 inches and unthreaded, the sights are fixed, and the slide is cut for a direct-mount optic; CZ's photos show Holosun, Aimpoint and Shield dots in place. The refined SFDA trigger is rated at 25±4 N with a 9±1 mm travel and 4 mm reset. The C holds 15+1 and the F 17+1, both taking two more with the extended base plate. List price from CZ is $729.
This is the longer grip of the two DUTY frames. It holds 17+1 rounds, 19+1 with the extended plate, stands 5.6 in (143 mm) and weighs 27.7 oz (780 g) unloaded. Same slide, same 102 mm barrel as the carry-size, so the sight radius is identical; you buy the F for the grip and the extra rounds.
Where the P-10 had a serial-numbered polymer frame, the DUTY 4.0 moves the serial number to an internal modular chassis. That is the headline. The rest follows the modern service-pistol formula done carefully: a striker SFDA trigger at 25 ± 4 N (5.6 ± 0.9 lbs) (0.16 in (4 mm) reset, 9 ± 1 mm (0.4 ± 0.04 in) travel), a 7.4 in (188 mm) long slide with direct-mount optics cuts, fixed sights and a 102 mm barrel without a thread.
The MS model carries a frame-mounted external safety on top of the firing pin block, trigger safety and drawbar safety. Everything else, chassis, trigger, slide and optics cut, is the same as the version without the lever.
Best fit: home defense, duty use, competition and long range sessions where the extra grip and two more rounds matter. Shooters coming from a CZ 75 will recognize the grip angle; buyers coming from any other striker gun will notice the trigger first.
Because the chassis carries a serial number, this one does not ship to your house the way a frame kit does. Give us your FFL dealer at checkout, and the pistol goes to them with tracking. The dealer completes the paperwork and applies your state's rules at pickup, so pick a dealer who takes transfers and ask about their process before you order.
Specs at a glance
Specifications
| Caliber | 9x19mm (9mm Luger) |
| Magazine capacity | 17+1 (19+1 with the extended base plate) |
| Barrel length | 102 mm (4 in) |
| Overall length | 188 mm (7.4 in) |
| Width | 33 mm (1.3 in) |
| Height | 143 mm (5.6 in) |
| Weight (empty magazine) | 780 g (27.7 oz) |
| Frame | fiberglass-reinforced polymer |
| Trigger | SFDA striker-fired |
| Trigger pull | 25 ± 4 N (5.6 ± 0.9 lbs) |
| Trigger reset | 4 mm (0.16 in) |
| Trigger travel | 9 ± 1 mm (0.4 ± 0.04 in) |
| Safeties | Firing pin block, trigger safety, trigger bar safety, manual thumb safety |
| Sights | Fixed |
| Threaded barrel | No |
| Optics | Direct-mount optics ready |
| Manufacturer | CZ (Česká zbrojovka) |
| MSRP | $729 |
Frequently asked questions
- Which part of the DUTY 4.0 is the firearm?
- The internal chassis carries the serial number, which is why the polymer grip frame around it can be modular.
- Does it use the same slides as the frames you sell?
- No. Our frame kits name the Gen 3 slides they fit, and the DUTY 4.0 is a complete CZ pistol with its own slide and barrel already fitted.
- Is the CZ DUTY 4.0 F MS the same gun as the F?
- Yes, apart from the manual thumb safety. Chassis, trigger, slide and the 17+1 capacity are identical.
- Who should pick the MS version?
- Anyone trained on a manual safety or who wants a positive on/off control, including many agency buyers.