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IA Iron River Armory

FN 545 Tactical 45 ACP 4.71″ Threaded Barrel, Black

SKUTSW|151359 Conditionnew CategorySemi Auto Handguns
$960.32
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About this product

The FN 545 Tactical is a full-size, striker-fired pistol chambered in .45 ACP engineered for duty and tactical applications. It features a 4.71-inch threaded steel barrel and an optics-ready, serrated steel slide designed to accept MRD plates. The polymer frame includes a MIL-STD-1913 Picatinny rail and interchangeable backstraps for personalized ergonomics. Co-witness tritium night sights and a high-endurance striker complete the core feature set.

Key Specifications

  • The caliber is .45 ACP.
  • The barrel measures 4.71 inches and is a target-crowned, threaded steel barrel.
  • The action is semi-automatic, striker-fired.
  • The frame is a black polymer frame with a Picatinny rail.
  • The slide is an optic-cut, serrated steel slide with multiple MRD mounting footprints.
  • The pistol ships with two magazines; specific magazine capacities vary by configuration.
  • The sighting system is co-witness tritium night sights.
  • The thread pattern for muzzle devices is .578×28.
  • The stated weight is 31 oz.
  • Additional features include an MRD optics-ready slide and ambidextrous controls.

Balanced for tactical use, the FN 545 Tactical combines a full-size platform with features intended for practical duty and precision from the bench: a threaded barrel for suppressor or compensator mounting, an optics-ready slide for rapid target acquisition, and a robust polymer frame to manage recoil. Its combination of proven ergonomics and service-oriented features makes it a capable option for shooters who need a big-bore pistol with modern accessory readiness.

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Specs at a glance

FN 545 Tactical 45 ACP 4.71… SPECS AT A GLANCE 31 oz WEIGHT 4.71 inches SIZE
Editorial diagram — measurements verified during testing.
Sources & methodology. Editorial review and rating by Travis Caldwell based on hands-on testing notes and published vendor specifications. Pricing verified at time of publication.
$960.32