CZ DUTY 4.0 C MS
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.
Capacity on the short-grip is 15+1, with a 17+1 option through the extended base plate. Height is 135 mm (5.3 in) and the empty weight 770 g (27.2 oz). If you carry, this is the DUTY to look at; if you mostly shoot at the range, see the F.
This is the version with a manual thumb safety. The three automatic safeties (firing pin block, trigger safety, drawbar safety) are the same as on every DUTY; the lever is an extra for people who were trained on one or simply want one.
What is new under the slide is the registered modular chassis. The serial number lives on the internal chassis, not on the polymer grip, so the grip module is a part you can change while the gun stays the same gun. Around it CZ put a reworked SFDA striker trigger, rated at 25 ± 4 N (5.6 ± 0.9 lbs) with a 4 mm (0.16 in) reset and 9 ± 1 mm (0.4 ± 0.04 in) of travel, and a slide cut for direct-mount optics. CZ's own photos show it wearing Holosun, Aimpoint and Shield reflex sights.
Who is it for: concealed carry where your state allows it, home defense, and range time that does not need a full-frame grip. 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.
Specs at a glance
Specifications
| Caliber | 9x19mm (9mm Luger) |
| Magazine capacity | 15+1 (17+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 | 135 mm (5.3 in) |
| Weight (empty magazine) | 770 g (27.2 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
- 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.
- What does MS mean on the CZ DUTY 4.0 C MS?
- Manual safety. It adds a thumb lever to the firing pin block, trigger safety and trigger bar safety that every DUTY has.
- Does the manual safety change the trigger?
- No. CZ rates the trigger the same on both versions: 5.6 pounds with a 4 mm reset.