FN 545

FN 545
Type	Semi-automatic pistol
Place of origin	United States
Production history
Manufacturer	FN America
Unit cost	$1,139 (MSRP)
Produced	2023–present
Specifications
Mass	30.0 oz (850 g) (Standard) 31.0 oz (880 g) (Tactical)
Length	7.7 in (200 mm) (Standard) 8.3 in (210 mm) (Tactical)
Barrel length	4.1 in (100 mm) (Standard) 4.71 in (120 mm) (Tactical)
Width	1.45 in (37 mm)
Height	6.0 in (150 mm)
Cartridge	.45 ACP
Action	Double action
Feed system	10-, 15- or 18-round box magazine
Sights	Fixed 3-dot; Tactical and MRD

The FN 545 is a polymer frame striker-fired semi-automatic pistol manufactured by FN America, a division of FN Herstal. Based on the FN 509, It is chambered in .45 ACP featuring double-action operation and a Picatinny rail located forward of the trigger guard.

The 545 was released in 2023 alongside the FN 510 (chambered in 10mm Auto).

Design details

Features

The FN 545 is a striker-fired handgun with a stainless steel slide with ferritic nitrocarburizing finish and a polymer frame. Black and flat dark earth (FDE) colorings are available. Barrel length is 4.1 inches (100 mm) for the Standard Full Size (MRD) model & 4.71 inches (120 mm) for the Tactical model. The slide has serrations on both front and back, for easy slide manipulation. There is a full-sized grip, housing 15-round magazines; 10-round magazines are available for states with a high-capacity magazine ban.

The backstrap of the grip accepts interchangeable inserts; one arched and one flat. Instead of a manual safety, the 545 includes an integrated trigger safety (the articulated trigger type like the FN FNS) as part of its four passive safety systems: a striker block, a drop safety, a trigger disconnect and a trigger safety lever.

Magazine releases and slide locks are present on both side of the gun.

Variants

Several variants of the FN 545 have been made available:

• Tactical – 4.71-inch (120 mm) barrel length, 15- and 18-round magazines, available in black or FDE, threaded barrel, raised sights (to accommodate a suppressor), with low-profile optics mounting system (for a red dot sight).
• Standard (MRD) – 4.1-inch (100 mm) barrel length, 15-round magazines, available in black or FDE, with low-profile optics mounting system.