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IA Ironclad Armory

FN 545 Tactical 45 ACP 4.71″ Threaded Barrel, Black

SKUTSW|151359 Conditionnew CategorySemi Auto Handguns
$1002.99
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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.

Key attributes

upc845737015664
manufacturerFN America / FN Herstal
manufacturer part number66-101383
actionDouble Action Only
atf typePistol
barrel finishBlack
barrel length4.71"
caliber/gauge.45 ACP
capacity15 + 1
colorBlack
length12.0500
modelFN 545T
number of magazines2 1-15 rd. and 1-18 rd.
package height3.1
package width11.9
product typeStriker Fired
safetyAmbidextrous Slide
shipping weight4.1
sightsSuppressor Height Night Sights
sights typeDovetail
slide descriptionOptic Cut/Serrated
state restriction (ca)NO DIRECT SHIP TO CALIFORNIA
state restriction (il)NO SALE TO ILLINOIS PICA
state restriction (ri)NO DIRECT SHIP TO RHODE ISLAND
state restriction (wa)NO DIRECT SHIP TO WASHINGTON
thread pattern.578″x28
units per box1
Sources & methodology. Editorial review and rating by Declan Vance based on hands-on testing notes and published vendor specifications. Pricing verified at time of publication.
$1002.99