FN 545 Tactical 45 ACP 4.71″ FDE | 66101386

The FN 545 Tactical is a full-size, optics-ready .45 ACP pistol built around a polymer frame and a cold hammer-forged, target-crowned threaded barrel. The slide is cut for MRD-style optics and ships with mounting plates so a compatible red dot can be fitted without gunsmithing; a Trijicon RMR or similar MRD (priced well under $1,000) is a common pairing. Its configuration suits duty carry and precision range training or competition where a large-caliber, optics-capable platform is desired.

Product Specifications

• The model is listed as FN 545 Tactical (Part Number 66101386).
• The caliber is .45 ACP.
• The action is Semi-Auto, striker-fired.
• The barrel measures 4.71 inches and is target-crowned.
• The thread pattern is .578×28 for muzzle accessories.
• The barrel material is steel with a black finish.
• The frame material is polymer with a Flat Dark Earth PVD finish.
• The slide is MRD optics-ready and ships with MRD mounting plates.
• The sights are listed as tritium night sights that co-witness with most MRD optics.
• The overall length is 8.30 inches.
• The weight is 31 ounces.
• Magazine configuration varies by factory package; the manufacturer lists included magazines as either two 10-round magazines or one 18-round and one 15-round magazine depending on the shipment.
• The pistol includes interchangeable backstraps and a Picatinny rail on the frame.
• Other features include a threaded barrel, ambidextrous operating controls, and a precision-tuned trigger.
• The UPC is 845737015695.

The FN 545 Tactical combines a full-size .45 ACP platform with modern features for optics integration and suppression readiness. Its threaded, target-crowned barrel, MRD-ready slide, and rugged polymer frame make it a practical choice for shooters who want a hard-use-capable pistol that accepts a red dot and supports a variety of magazine options. The included mounting plates and accessories simplify adding an optic and configuring the pistol for range or competition use.