Description
The FN 510 MRD 10mm FDE No Safety model is FN’s full size, optics ready striker fired pistol chambered in 10mm Auto. This flat dark earth version has no manual safety and ships with two 10 round magazines for buyers who need compliant capacity.

FN 510 MRD 10mm FDE No Safety Overview
The FN 510 was designed specifically around the powerful 10mm cartridge, with a slide and frame built to handle full power loads reliably. The MRD slide is cut to accept popular red dot optics, and suppressor height style iron sights allow co-witnessing. The FN 510 MRD 10mm FDE No Safety model has a textured polymer frame with interchangeable backstraps, an accessory rail for lights, ambidextrous slide stop levers and a reversible magazine release. A 4.7 inch cold hammer forged barrel provides accuracy and durability.
Why 10mm
10mm Auto offers more energy than 9mm or .40 S&W, which makes it popular for backcountry protection, hunting where legal and shooters who simply enjoy a powerful handgun. Recoil is stronger than 9mm, but the 510’s full size frame helps keep it controllable.
Optics Ready
The MRD cut accepts a wide range of red dots using included plates, giving faster target acquisition and better precision, especially at distance or in low light.
Compliant Capacity
This configuration includes 10 round magazines. Full capacity magazines are available where legal.
Practice and Training
Regular practice builds confidence and safe handling. Start at close range, focus on sight alignment and a smooth trigger press, and work back as your groups tighten. Dry fire with snap caps at home to improve your trigger control between range trips.
Choosing Ammunition
Try several brands and bullet weights to see what feeds reliably and groups best in your handgun. Use quality full metal jacket loads for practice and proven hollow points for defense, and confirm reliable function with your defensive load before carrying it.
Care and Maintenance
Clean the barrel, slide or cylinder and frame after shooting, apply a light coat of quality lubricant to moving parts, and store the handgun unloaded in a locked case or safe away from children.
Safe Storage
Store handguns unloaded in a locked safe, lockbox or with a cable lock, and keep ammunition separate when children are in the home. Quick access safes keep a defensive handgun secure but available. Teach everyone in the household basic firearm safety rules.
Ordering From MAG5
Choose your local FFL dealer at checkout and we ship directly to them. Once the firearm arrives, your dealer runs the background check and completes the transfer paperwork. Most dealers charge a modest transfer fee, so ask about it before you order.
State Laws
Firearm, magazine and transfer laws vary by state. Check your local laws and confirm your receiving dealer can complete the transfer.
Specifications
- Manufacturer: FN America
- Model: FN 510 MRD, no manual safety
- UPC: 845737015657
- Caliber: 10mm Auto
- Action: Striker fired semi-automatic
- Barrel: 4.7 in. cold hammer forged
- Capacity: 10 rounds, two magazines included
- Finish: Flat dark earth
- Optics: MRD optics ready slide
- Features: Accessory rail, ambidextrous controls, interchangeable backstraps
Before You Buy
Federal law requires handguns to ship to a licensed FFL dealer, and you must be 21 or older to purchase a handgun from a dealer. You will complete a background check at your dealer. Check your local laws before ordering.
Who It Is For
The FN 510 MRD 10mm FDE No Safety is a great fit for hunters and hikers who want a powerful sidearm, 10mm enthusiasts, and shooters who want a full size optics ready pistol.
Buy the FN 510 MRD 10mm FDE No Safety at MAG5 Firearms
MAG5 Firearms is a family-owned FFL in Collegeville, Pennsylvania. Order the FN 510 MRD 10mm FDE No Safety online and ship it to your local FFL dealer, or browse our full selection of firearms for more pistols. For factory details, visit FN America.







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