FN 545 MRD .45 ACP 4.1 in Barrel Black

About this product

The FN 545 MRD is a full-size, striker-fired pistol chambered for .45 ACP designed for duty, range, and defensive applications. It features a 4.1-inch hammer-forged, target-crowned steel barrel and a slide machined to accept multiple MRD optic footprints. The polymer frame includes an integral Picatinny rail and interchangeable backstraps for tailored ergonomics. The package ships with mounting plates, a premium zippered case, a locking device and two magazines.

Key Specifications

• The caliber is .45 ACP.
• The barrel measures 4.1 inches and is hammer-forged with a target crown.
• The action type is Semi-Auto.
• The frame material is Polymer and includes a MIL-STD-1913 (Picatinny) rail.
• The slide is optic-cut/serrated steel and accepts multiple MRD footprints.
• The package includes 2 magazines.
• The unloaded weight is approximately 30 oz.
• The optic footprint supports multiple mounting plates and four MRD plates are included.
• The sights are fixed/driftable steel co-witness with most MRD optics.
• The trigger is precision-tuned (≈6 lb) for a clean break.

Built to be optics-ready and comfortable to shoot, the FN 545 MRD pairs a robust steel barrel and slide with a modular polymer frame. Its fit and features make it a practical choice for shooters who want a modern full-size pistol capable of accurate, repeatable performance at the range and sensible handling in operational roles. The included accessories — interchangeable backstraps, mounting plates, two magazines, and a premium case — provide a complete, out-of-the-box setup for immediate use on the line.

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