FN 545 Tactical .45 ACP FDE Full-Size — Threaded 4.71" Barrel, Trijicon Night Sights, Optics-Cut Slide, 10+1
The FN 545 Tactical is a modern, full-size .45 ACP built in the USA with a feature set tailored for suppressor and optic use. This example wears an FDE slide and frame, a cold hammer-forged 4.71" threaded barrel, co-witness-capable suppressor-height Trijicon night sights, and FN's Low-Profile Optics Mounting System. It includes two 10-round magazines and factory accessories, offering a complete, ready-to-setup package.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: This firearm is in great shape with minor scratches and blemishes visible on close inspection.
What’s Included
- FN factory original box
- FN-branded soft case (tan)
- 2x 10-round steel magazines with polymer base pads
- Optic adapters (2x)
- Interchangeable backstrap (spare, uninstalled)
- Lock
The 4.71" barrel is cold hammer-forged, threaded 0.578x28 TPI, and finished with a recessed target crown. This setup supports common .45 ACP muzzle devices while preserving accuracy and barrel life.
The slide features front and rear serrations, protective sight wings, and an optics cut with a cover plate. FN's Low-Profile Optics Mounting System uses a multi-footprint slide cut and the included adapter plates to accept a range of micro red dots, with co-witness capability through the suppressor-height Trijicon 3-dot night sights.
The FDE polymer frame includes interchangeable backstraps and an integral Picatinny-type accessory rail for lights or lasers. Ambidextrous slide stop levers support bilateral manipulation, and the striker-fired action uses a flat-faced trigger with a safety tab and integrated trigger safety.
Chambered in .45 ACP, the 545 Tactical ships with two 10-round magazines for a 10+1 capacity. Factory markings include "545" on the slide, ".45 ACP" on the chamber hood, and "FN COLUMBIA, SC USA" on the right side.