FN ® - The World's Most Battle-Proven Firearms.™

Thank you for your interest in FN Firearms.
Our site is for individuals 18 years of age or older.

Are you 18 years of age or older?

No

Pistols > FN 509® Series > FN 509® Midsize MRD

FN 509® Midsize MRD

Available for commercial, law enforcement, and military.

MSRP: $834.00
Specs

Your EDC just got better with the all-new FN 509® Midsize MRD.

This evolution of the FN 509 Midsize, now featuring the FN Low Profile Optics Mounting System, gives you the option of direct mounting more than 10 different miniature red dot optics to your concealed carry pistol. The FN 509 Midsize MRD features a four-inch barrel and slide with optics mounting package, a midsized frame, standard 15-round capacity and is compatible with larger capacity FN 509 magazines with use of a sleeve. The improved controls aid in manipulation, the new improved texturing on the two included backstraps provides better recoil management, and a new flatter faced trigger allows for more controllable trigger press and cleaner break.

Learn More

FN 509® Midsize MRD Sell Sheet

PRODUCTDESIGNATIONUPC
66-100587FN 509M NMS BLK/BLK MRD 2X15845737010737
66-100588FN 509M NMS BLK/BLK MRD 2X10845737010744
66-100741FN 509M MRD NMS FDE/FDE 2X15845737011567
66-100742FN 509M MRD NMS FDE/FDE 2X10845737011574
Shop FN 509 Accessories

Related Products

FN 509® Midsize

FN 509® Midsize

FN 509®

FN 509®

Specs

  • Caliber: 9mm
  • Operation: Double-action
  • Mag Capacity: 10 or 15 Rd.
  • Weight: 26.5 oz.
  • Barrel Length: 4.0"
  • Overall Length: 7.4"
  • Twist Rate: 1:10" RH
  • Height: 5.2"
  • Width: 1.35"
  • Trigger Pull: 5.5 - 7.7 lb.
  • Sight Radius: 5.79"

Primary Features

Full-sized performance in a concealed carry package

Striker-fired autoloader

Double-action operation

Fully ambidextrous controls

FN Low Profile Optics Mounting System with plate adapters for direct mounting of more than 10 optics

All-black co-witness iron sights

SLIDE

Easily racked, combat-style sights

External extractor; loaded chamber indicator

Improved front and rear cocking serrations

BARREL

Cold hammer-forged stainless steel

Recessed target crown

Polished chamber and feed ramp

FRAME

Polymer construction with replaceable steel frame/slide rails

Enhanced grip textures which enables faster follow-up shots in all conditions

Interchangeable backstraps

MIL-STD-1913 accessory mounting rail

Improved flatter face trigger

OPERATING CONTROLS

Fully ambidextrous slide stop lever and magazine release

MAGAZINE

High visibility, low-friction follower; polymer base with black finish

Compatible with FN 509 17-round and 24-round
magazines with appropriate magazine sleeves

SHIPS WITH

Two interchangeable backstraps

Two 15-round magazines or Two 10-round

Owner’s manual

Locking device

FN logo soft pistol case