Description
The FN 510 MRD 10mm 4.1-inch FDE Striker-Fired Pistol brings a full-power hunting and defense cartridge into a package built for control. With a 15+1 capacity and an optics-ready slide, this Flat Dark Earth handgun gives you the stopping power of 10mm Auto without punishing recoil. It’s a full-size pistol designed for shooters who want a reliable sidearm for the backcountry or the range.
| Manufacturer | FN America |
|---|---|
| Model | 510 MRD |
| Material | Polymer frame, machined steel slide |
| Compatibility | 10mm Auto ammunition; accepts multiple MRD footprints |
| Finish | Flat Dark Earth (FDE) polymer, black corrosion-resistant slide |
| Weight | 29.1 oz (unloaded, per manufacturer specs) |
| Condition | New |
Key Features
- Optics-Ready Slide: The slide comes pre-milled to accept multiple MRD mounting patterns, so you can add your favorite red dot without extra machining. Why it matters: Faster target acquisition and improved accuracy for new shooters and experienced hunters alike.
- Aggressive Slide Serrations: Deep, angled serrations front and rear give you a solid grip when racking the slide, even with wet or gloved hands. Why it matters: Reliable manipulation in field conditions builds confidence for family outings.
- Interchangeable Backstraps: Three included backstraps let you adjust the grip circumference to fit your hand size. Why it matters: Proper fit means better control and less fatigue during practice sessions.
- 4.1-Inch Cold Hammer-Forged Barrel: This barrel delivers consistent accuracy and handles the high pressures of 10mm loads. Why it matters: Dependable performance for self-defense or hunting when every shot counts.
- Flat Dark Earth Frame: The FDE polymer frame reduces glare and blends into natural surroundings. Why it matters: Less visual signature in the field, plus a low-maintenance finish that holds up to rough use.
Who It’s For
This pistol fits shooters stepping up to 10mm for the first time—families who want a powerful sidearm for hiking, camping, or range training. It also suits experienced handgun owners looking for a reliable full-size option with modern features. The FN 510 MRD is not a compact carry gun; it’s a full-size platform built for control and capacity.
Pros and Cons
- Pro: High capacity (15+1) in a potent caliber, giving you more rounds than many 10mm options.
- Pro: Optics-ready design saves you the cost of slide milling.
- Pro: Ergonomic grip and low bore axis reduce muzzle flip for quicker follow-up shots.
- Con: The 4.1-inch barrel and full-size frame make it less concealable than compact 10mm pistols. For deep concealment, consider a shorter-barreled model.
Comparison
| Feature | FN 510 MRD | Glock 20 Gen5 MOS | Springfield Armory XD-M Elite 4.5in |
|---|---|---|---|
| Caliber | 10mm Auto | 10mm Auto | 10mm Auto |
| Barrel Length | 4.1 in | 4.6 in | 4.5 in |
| Capacity | 15+1 | 15+1 | 15+1 |
| Weight | 29.1 oz | 30.0 oz | 32.0 oz |
| Optics Ready | Yes (multi-footprint) | Yes (MOS pattern) | Yes (Hex Dragonfly pattern) |
| Frame Color | Flat Dark Earth | Black | Black |
The FN 510 MRD weighs slightly less than the Glock 20 MOS, which can reduce fatigue during long range sessions. Its multi-footprint optic system offers more mounting flexibility than the Glock’s proprietary MOS pattern.
FAQ
What footprint does the FN 510 MRD accept?
The slide is machined to accept popular red dot footprints including Trijicon RMR, Holosun 407C/507C, and Docter/Noblex patterns. Per FN America specs, no adapter plate is required for these common footprints.
Is the FN 510 MRD safe for new shooters?
Yes, with proper training. The 10mm cartridge produces more recoil than 9mm, so start with lower-velocity loads and practice grip fundamentals. The interchangeable backstraps help smaller hands achieve a secure hold.
What is the warranty on this pistol?
FN America backs the 510 MRD with a limited lifetime warranty for the original owner. Coverage includes defects in materials and workmanship.
Can I use this for hunting?
Absolutely. The 10mm Auto with proper hard-cast or expanding bullets is effective for deer and hogs at moderate ranges. The 4.1-inch barrel provides enough velocity for ethical shots inside 50 yards.
According to the NSSF, 10mm Auto handgun sales have grown over 40% since 2020, making the FN 510 MRD a timely choice for shooters who want a powerful, modern platform.
✔ Nationwide delivery (all 50 states)
✔ Ships 1-2 business days
✔ 30-day returns
✔ Secure checkout
Browse more options in our Semi Auto Handguns or check out 10mm Pistols and Optics-Ready Pistols.
Last updated: April 2026
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