CZ DUTY 4.0 F
Specs at a glance
About this product
Anyone who has milled a PF940 rail block will look at the DUTY 4.0 and notice where CZ put the serial number: on an internal chassis, not on the polymer. That single choice makes the fiberglass-reinforced grip frame a modular part and gives the pistol a layout that frame-first people will appreciate. The rest is a modern striker-fired 9x19mm with a 4-inch barrel, no threading, and fixed sights.
Sizes break down this way. C compact: 15+1 rounds, 17+1 with the extended base plate, 770 g, 135 mm tall. F full-size: 17+1, 19+1 extended, 780 g, 143 mm tall. Shared dimensions are 188 mm long and 33 mm wide. The optics-ready slide accepts a red dot by direct mount, and CZ's press photos show Holosun, Aimpoint and Shield units fitted. Trigger is a refined SFDA at 25 N, about 5.6 lbs, 9 mm travel, 4 mm reset. The MS suffix means a manual thumb safety sits alongside the firing pin block, trigger safety and trigger bar safety. MSRP: $729.
CZ built the DUTY around a registered chassis that the polymer grip module wraps around, the same idea that lets a shooter change frame size without buying a new registered gun. The trigger is a refined SFDA striker unit, 25 ± 4 N (5.6 ± 0.9 lbs) pull, 4 mm (0.16 in) reset, 9 ± 1 mm (0.4 ± 0.04 in) travel. The slide takes optics by direct mounting; CZ's product photos show Holosun, Aimpoint and Shield units in place. Sights are fixed, the 4-inch barrel is not threaded.
This is the longer grip of the two DUTY frames. It holds 17+1 rounds, 19+1 with the extended plate, stands 143 mm (5.6 in) and weighs 780 g (27.7 oz) unloaded. Same slide, same 4-inch barrel as the short-grip, so the sight radius is identical; you buy the F for the grip and the extra rounds.
No manual 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 thumb 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.
Unlike the frame kits here, a DUTY 4.0 is a serialized complete pistol and must go through an FFL dealer. Select your dealer at checkout, the pistol goes to that dealer, and the dealer completes the transfer and applies your state's rules when you come to collect it. Make sure the dealer is expecting it.
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 |
| Sights | Fixed |
| Threaded barrel | No |
| Optics | Direct-mount optics ready |
| Manufacturer | CZ (Česká zbrojovka) |
| MSRP | $729 |
Frequently asked questions
- Can the grip frame on the DUTY 4.0 be changed?
- The grip frame is a modular polymer part because the serial number sits on the internal chassis. The chassis is the regulated component.
- What is the weight difference between the C and the F?
- Only 10 g: the C compact weighs 770 g and the F full-size 780 g. The main difference is the 8 mm of extra grip height and two more rounds in the F.
- 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.
- Can I put a red dot on it?
- Yes. The slide is optics-ready with direct mounting; CZ's photos show Holosun, Aimpoint and Shield dots fitted.