Southern Arizona is carry country, and the CZ DUTY 4.0 arrives as a new optics-ready 9x19mm striker gun sized for it. CZ put the serial number on an internal modular chassis and wrapped it in a fiberglass-reinforced polymer frame, then gave it a 4-inch unthreaded barrel, fixed sights and a direct-mount red-dot cut. The SFDA trigger is rated at 5.6 pounds with a 4 mm reset.

In Tucson, Oro Valley and Marana, and down to Sierra Vista and Nogales, the C compact at 15+1 rounds, 770 g and 1.3 inches wide is the carry choice. Up in Phoenix and Mesa, or for the nightstand, the F full-size with 17+1 and a 143 mm grip gives more to hold. Both are available as MS models with a manual thumb safety. The $729 MSRP applies across the line, and all four share the 7.4-inch overall length.

Pick the C when the gun has to disappear under a cover garment. It gives up two rounds to the full-frame model (15+1 against 17+1) and about 8 mm of grip height, and in return it is 135 mm (5.3 in) tall and 770 g (27.2 oz) light.

CZ built the DUTY around a serial-numbered chassis that the polymer polymer grip wraps around, the same idea that lets a buyer change frame size without buying a new serial-numbered 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 version has no external safety lever. It relies on three internal safeties, firing pin block, trigger safety and drawbar safety, and the trigger is the same as on the MS model. Shooters who prefer a lever should pick the MS.

The CZ DUTY 4.0 C suits anyone who wants a modern optics-ready 9mm with CZ's grip and a trigger that is better than the class average: daily carry, a home-defense gun that also rides along, and new buyers who want one pistol for everything.

Order the model you want and choose the Arizona dealer it ships to. Arizona has no permit to purchase and no waiting period; the background check happens at your dealer when you pick it up. Ammo and gear ship to your home address. Price and stock are confirmed live when you order, before you pay, so the number you see is the number you pay.

Questions buyers ask: Do I need a permit to buy a handgun in Arizona? No. Arizona has no permit to purchase and no waiting period; the dealer runs the background check when you pick it up. How wide is the DUTY 4.0 for inside-the-waistband carry? 33 mm, or 1.3 inches, on both the C and the F. The C is the shorter of the two at 135 mm tall and 770 g. Does the CZ DUTY 4.0 C take CZ P-10 magazines? CZ lists the DUTY with its own 15-round magazine and an extended base plate for 17+1. P-10 magazine fit is not confirmed, so plan on DUTY magazines.