FN 545 MRD | .45 ACP | 4.1 in Barrel | 10-Round | FDE | 66101390

The FN 545 MRD is a full-size, optics-ready striker-fired pistol chambered in .45 ACP with a 4.1-inch cold hammer-forged barrel and a 10-round capacity. It features a Flat Dark Earth polymer frame, a slide cut to accept common micro red dot optics, and an ergonomically enhanced grip with interchangeable backstraps. Suggested optic pairing: Holosun 507C or a comparable compact reflex sight under $1,000 for co-witnessed, low-profile installation.

Common applications for this platform include range training and competition shooting where a full-size frame and big-bore caliber are desirable. The MRD cut and driftable co-witness sights support fast sight acquisition and optics integration without a gunsmith.

Product Specifications

• The UPC is 845737015732.
• The caliber is .45 ACP.
• The barrel measures 4.1 inches.
• The capacity is 10 rounds.
• The pistol ships with 2 magazines.
• The frame material is polymer with a Flat Dark Earth finish.
• The action is Semi-Auto.
• The weight is 30 oz..
• The overall length is 7.7 inches.
• The optic footprint is listed as MULTIPLE and the slide is cut to mount most optics.
• The sights are optic-height, fixed driftable steel sights that co-witness with MRD optics.
• The slide description is Optic Cut/Serrated.
• The country of origin is US.

The FN 545 MRD combines a full-size, controllable platform with an optics-ready slide and durable construction. Its cold hammer-forged, target-crowned barrel and tuned trigger provide a stable foundation for accurate follow-up shots, while the interchangeable backstraps and textured grip help manage recoil for shooters preferring larger calibers. This configuration is suited to shooters who want a full-size .45 ACP with modern optics capability and a comprehensive accessory package.

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