The CZ Duty 4.0F is a full-size, striker-fired 9mm service pistol engineered for duty and high-volume performance. Built on a durable black polymer frame, it pairs ergonomic modularity with a reliable 4-inch cold hammer-forged barrel designed for exceptional longevity and match-grade accuracy. This configuration features a direct-mount optics-ready slide utilizing an adaptable pin system to accommodate a wide variety of popular red dot footprints. Outfitted with H3 tritium night sights, ambidextrous slide stops and magazine catches, and three interchangeable grip modules for a personalized fit, the Duty 4.0F delivers modern tactical versatility straight out of the box.Hands-On VerifiedGuns.com Hands-On Review"The CZ Duty delivers a modern modular chassis system backed by legendary CZ ergonomics and striker-fired reliability. Evaluated by the Guns.com editorial team for crisp trigger break, optics-ready slide compatibility, modular grip frame adaptivity, and flat-shooting control."Read The Full Review @media(min-width:576px){div style*="flex-direction:column"{flex-direction:row!important}div style*="width:100%;aspect-ratio"{width:180px!important;min-width:180px!important;height:120px!important;aspect-ratio:auto!important}}