FN America / FN Herstal FN 545 MRD .45 ACP

The FN 545 MRD is a full-size, striker-fired .45 ACP pistol engineered for modern shooters who require an optics-capable platform for range use, duty applications, and personal defense. It pairs a precision-tuned trigger with a purpose-built slide and barrel to deliver consistent, controllable performance.

The pistol is built on a Flat Dark Earth polymer frame with an integral Picatinny rail and interchangeable backstraps to tailor ergonomics. The slide is optic-cut and serrated, and the cold hammer-forged steel barrel is target crowned and polished for reliable feeding and durability.

Key Specifications

• The caliber is .45 ACP.
• The action is Semi-Auto.
• The barrel length is 4.1 inches.
• The magazine capacity is 15 rounds.
• The number of magazines included is 2.
• The frame material is Polymer.
• The frame finish and color is Flat Dark Earth.
• The weight is 30 ounces.
• The optic footprint is Multiple (MRD optics ready).
• The slide description is Optic Cut/Serrated.

State Restrictions: This firearm is not available for sale in California and cannot be direct shipped to California, Rhode Island, and Washington.

The FN 545 MRD combines an optics-ready slide, ergonomic polymer frame, and a target-crowned hammer-forged barrel to provide a modern full-size .45 ACP platform. For buyers seeking a full-size .45 ACP pistol with optics flexibility and factory accessories, the FN 545 MRD presents a well-equipped option.

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