GunMag Shop

Buy Rifles, Handguns and Shotguns Online USA

FN America FN 509 Midsize MRD 9mm Luger Semi Auto Pistol 4″ Barrel 10 Rounds Red Dot Compatible Ambidextrous Controls Polymer Frame Black



  • All firearm sales are final. NO RETURNS.
  • Return to manufacturer for warranty service.
  • Firearms are only available for purchase online.

Due to high volume, some firearms may require up to 2 weeks to process.

A $15.99 handling fee will be charged per order. No additional charge for multiple firearms on an order

Categories: ,

Every Day Carry 10 Round Handgun With Miniature Red Dot Compatibility From the Factory

New for 2019, FN America presents the next evolution of their popular FN 509 polymer frame striker-fired handgun series with the Midsize MRD. This model features FN Low Profile Optics Mounting System which gives you the option of direct mounting a variety of miniature red dot sights with ease. The FN 509 Midsize MRD is compatible with popular options such as: Trijicon RMR, Leupold DeltaPoint Pro, Vortex Razor/Viper/Venom, Burris FasFire II/III, Docter Optic, CMore STS II and more. With it’s shorter grip, red dot compatibility, and ambidextrous controls, the FN 509 Midsize MRD is excellent for EDC.

FN America FN 509 Midsize MRD Specifications and Features:

  • FN Item Number: 66-100588
  • Striker-Fired Semi Automatic Handgun
  • 9mm Luger
  • 4″ Cold Hammer Forged Stainless Steel Barrel
  • 1:10″ Right Hand Twist
  • 10 Round Magazine
  • All black co-witness height sights
  • FN Low Profile Optics Mounting System
  • Includes plate adapters for direct mounting of more than 10 optics
  • External extractor with loaded chamber indicator
  • Improved front and rear cocking serrations
  • Recessed target crown
  • Polished chamber and feed ramp
  • Enhanced grip textures
  • Interchangeable backstraps
  • MIL-STD-1913 accessory mounting Picatinny rail
  • Fully ambidextrous slide stop lever and magazine release
  • Trigger Pull: 5.5-7.5 lb
  • Sight Radius: 5.79″
  • Height: 5.2″
  • Width: 1.35″
  • Overall Length: 7.4″
  • Weight: 26.5 oz
  • Steel Slide
  • Polymer Frame
  • Black


There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.

Scroll to top