FN 545 Tactical 4.71in .45 ACP Threaded Optic-Cut
Specs at a glance
About this product
The FN 545 Tactical is a full-size .45 ACP pistol built for duty and range use, featuring a suppressor-ready threaded barrel and an optic-cut, serrated steel slide. It pairs a polymer frame with a MIL-STD-1913 Picatinny rail and interchangeable backstraps for tailored ergonomics. The slide is configured for MRD optics and the pistol ships with night sights sized for suppressor-height co-witnessing. Controls are ambidextrous to suit a wide range of shooters.
Key Specifications
- The caliber is .45 ACP for experienced large-bore shooters.
- The barrel measures 4.71 inches and is target crowned for consistent performance.
- The barrel is described as threaded .578×28 for accessory compatibility.
- The barrel material is steel with a black finish.
- The slide is optic-cut and serrated to accept most mini red dot optics.
- The frame material is polymer with an integral Picatinny rail.
- The pistol ships with suppressor-height night sights that co-witness with most MRD optics.
- The pistol is listed with a 31 oz weight specification.
- The overall length is 8.30 inches for a full-size platform.
- Ergonomics include ambidextrous operating controls and interchangeable backstraps.
The FN 545 Tactical blends full-size presence with modern features: a threaded target-crown barrel, MRD-ready slide cuts, suppressor-height sights, and ambidextrous controls make it a practical choice for shooters who want a purpose-built large-bore pistol with contemporary ergonomics and accessory options. Its construction balances durable steel components with a lightweight polymer frame to deliver a controlled, serviceable platform suitable for training and range use.
Key attributes
| upc | 845737015671 |
| manufacturer | FN America / FN Herstal |
| manufacturer part number | 66-101385 |
| action | Double Action Only |
| atf type | Pistol |
| barrel finish | Black |
| barrel length | 4.71" |
| caliber/gauge | .45 ACP |
| capacity | 10 + 1 |
| number of magazines | 2 10 rd. |
| package height | 3.3 |
| package width | 11.13 |
| product type | Semi-Auto Pistol |
| safety | No |
| shipping weight | 4.05 |
| sights | Suppressor Height Night Sights |
| sights type | Dovetail |
| slide description | Optic Cut/Serrated |
| thread pattern | .578″x28 |
| units per box | 1 |