The modern defensive handgun must balance power, controllability, and optics-ready ergonomics. In law enforcement and serious personal defense scenarios, a platform that can accept a red dot, handle heavy-recoil cartridges, and provide consistent trigger performance separates the reliable from the merely adequate.

FN 510 MRD — a full-size 10mm Auto semi-auto built for duty use — delivers a 15+1 capacity, a 4.10″ black target-crown steel barrel, and a flat dark earth PVD optic-cut/serrated steel slide over a polymer frame with MIL-STD-1913 rail. The package ships with a Holosun 407C red dot, two magazines, two interchangeable backstraps, four MRD mounting plates, and a zippered case. Shop this product

Why the FN 510 MRD stands out

The platform centers on a Low-Profile Optics Mounting System that keeps the Holosun 407C low over the bore for fast, natural sight acquisition and reliable co-witness with driftable steel sights. The precision-tuned trigger and enhanced grip frame give shooters better control of 10mm Auto recoil, improving follow-up accuracy in dynamic engagements. At a street price of $799.99, it positions as a value-focused option for professionals and experienced civilians seeking a robust duty-sized 10mm.

Caliber and performance

10mm Auto provides superior energy and barrier performance compared to most common duty calibers, making it suitable for defense against aggressive threats and for field applications. The 4.10″ target-crown barrel optimizes accuracy while maintaining a practical length for duty carry. The 15+1 capacity balances firepower and ergonomics in a full-size platform.

Ergonomics and modularity

Ambidextrous controls, two backstraps, and multiple MRD mounting plates allow shooters to tailor fit and optic footprint quickly. The slide’s serrations and the frame’s textured grip help maintain positive manipulation in adverse conditions. With a MIL-STD-1913 rail, mounting lights or lasers is straightforward for trained operators. View product details and pricing

Who should consider this pistol

Trained shooters who prioritize a red dot-ready, full-size platform with hard-hitting 10mm performance will appreciate the FN 510 MRD. It’s well-suited for tactical professionals, experienced open- or duty-carriers, and those wanting a single handgun capable of serious defensive performance and accurate follow-up shots.

For full specifications, included accessories, and current purchasing options, Check current availability and the retailer’s product page where you can complete your purchase.

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