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FN 545 Tactical .45 ACP Blue/Black Pistol

The FN 545 Tactical is a suppressor-ready, striker-fired pistol chambered in .45 ACP and built around the proven ergonomics of the FN 509 Tactical. Its 4.7-inch threaded barrel supports compatible sound suppressors, while co-witness tritium night sights provide a visible aiming reference in low-light conditions. The optics-ready slide accepts a wide range of red dot sights through the included MRD mounting plates. An integrated trigger safety, high-endurance striker, approximately 6-pound trigger pull, and interchangeable backstraps provide a practical balance of controls, durability, and fit.

Key features

  • Chambered in .45 ACP with a 10+1 capacity
  • 4.7-inch threaded barrel with 1/2x28 threads for suppressor use
  • Optics-ready slide with four included MRD mounting plates
  • Co-witness tritium night sights for low-light visibility and backup aiming
  • Striker-fired action with an integrated trigger safety
  • Polymer frame with two interchangeable backstraps for a customized grip fit

The FN 545 Tactical includes two 10-round magazines, four MRD mounting plates, interchangeable backstraps, and a premium zippered case for a complete ready-to-configure package.

FN 545 Tactical .45 ACP Blue/Black Pistol: quick facts

What caliber is the FN 545 Tactical .45 ACP Blue/Black Pistol?
It is chambered in .45 ACP.
How many rounds does it hold?
10+1 rounds; magazines included: 2.
How big and heavy is it?
Barrel length 4.7 inches, overall length 8.3 inches, weight 31 ounces.
What kind of action does it use?
Semi-Automatic.
Is it optic ready or threaded?
Optic ready: Yes; threaded barrel: Yes.
What sights and finish does it have?
Sights: Night Sights; finish: Blue/Black.
Is it new or used?
New, in the original packaging.
Can I buy it in Iowa?
Yes. It ships to a licensed FFL dealer in Iowa; you pick it up there after the background check. Handguns ship to the Iowa dealer you pick at checkout, where you complete Form 4473 and the background check before pickup.
Is it in stock?
Yes, at $1115.49. Orders leave within 1-2 business days; shipping is free over $999.

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