GunsAmerica

Quick Look

The FN 545 is a full-size tactical pistol stemming from FN America's proven duty lineup. Designed to deliver .45 ACP firepower with modern features, it supports optics and threaded barrels for suppressors. It's gaining traction among defensive shooters and professionals seeking .45-caliber capability in a modular platform.

Why It's a Top Choice

Chambered in powerful .45 ACP with 15+1 capacity
Optics-ready slide supports multiple red dot footprints
Comes standard with threaded barrel for suppressors
Ambidextrous controls suitable for left-handed shooters
Sturdy FN build quality trusted by military and law enforcement

Key Variants

FN 545 Tactical

Designed for suppressor and optic users, it includes threaded barrel and optic cut from factory.

Competitor Comparison Table

Feature	Fn 545	Glock 21	Sig Sauer P320 .45
MSRP	$1,139 (Tactical)	$599	$650
Capacity	15+1	13+1	10+1 to 13+1
Weight (unloaded)	31 oz	29 oz	30 oz
Optics-ready	Yes	No	Yes (depending on model)
Trigger type	Striker-fired	Striker-fired	Striker-fired
Notable pro	Suppressor-ready from factory	Simple, proven reliability	Modular fire control group
Notable con	Higher cost	No optic support	Heavier recoil impulse

Best Use Cases

Home defense with suppressor/optic configuration
Law enforcement or armed professional backup
Range training for .45-caliber proficiency
Suppressor host for subsonic shooting
Firearms collection featuring large-frame pistols

FAQs

What is the FN 545 Tactical's magazine capacity?

It ships with 15-round magazines, one of the highest capacities available in .45 ACP handguns.

Can I mount a red dot optic to the FN 545?

Yes, the slide is optics-ready and includes mounting plates compatible with popular micro red dots.

How does the FN 545 compare to a Glock 21?

The FN 545 offers higher capacity, optic/suppressor support, and ambi controls not found on Glock 21.

FN 545 for Sale