FN 545 Tactical 45 ACP 4.71″ Threaded Barrel, Black
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
Key attributes
| upc | 845737015664 |
| manufacturer | FN America / FN Herstal |
| manufacturer part number | 66-101383 |
| action | Double Action Only |
| atf type | Pistol |
| barrel finish | Black |
| barrel length | 4.71" |
| caliber/gauge | .45 ACP |
| capacity | 15 + 1 |
| color | Black |
| length | 12.0500 |
| model | FN 545T |
| number of magazines | 2 1-15 rd. and 1-18 rd. |
| package height | 3.1 |
| package width | 11.9 |
| product type | Striker Fired |
| safety | Ambidextrous Slide |
| shipping weight | 4.1 |
| sights | Suppressor Height Night Sights |
| sights type | Dovetail |
| slide description | Optic 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 box | 1 |