FN 545 MRD .45 ACP 4.1″ Optics-Ready Pistol

The FN 545 MRD is a full-size, optics-ready striker-fired pistol chambered in .45 ACP. It pairs a 4.1‑inch cold hammer‑forged, target‑crowned barrel with an enhanced polymer frame for controlled handling. The low-profile MRD optics cut and included mounting plates allow quick installation of compatible red dot sights.

Key Specifications

• Chambered in .45 ACP.
• The barrel measures 4.1 inches and is cold hammer-forged with a target crown.
• Action type is Semi-automatic, striker-fired.
• The frame is constructed from polymer for balanced handling.
• The pistol weighs 30 ounces.
• Optic footprint is listed as multiple with MRD cut and supplied mounting plates.
• Sights are driftable steel co-witness height sights.
• Controls include a fully ambidextrous slide stop and magazine release.
• Features a MIL-STD-1913 Picatinny rail for accessories.
• Package contents include two magazines and interchangeable backstraps.

Built for shooters who value predictable ergonomics and optics compatibility in a large-caliber platform, the FN 545 MRD combines a durable barrel and slide package with a refined trigger feel and user-focused controls. Its MRD-ready slide, included mounting plates, and accessory rail make it adaptable for range work, duty use, or precision-oriented shooting where a reliable, optics-capable .45 ACP pistol is required.