Using the same FN low-profile optics-mounting system as the rest of the MRD series, the Compact version accommodates most commercially available miniature red dots while featuring blackout iron sights that co-witness. Other features include a flat-face trigger, an accessory rail for compact lights, two additional backstraps to conform to different user grip sizes, and improved ambi surface controls.
The FN 509 Compact MRD will be available in both FDE and black, optic not included. Note the front and rear slide serrations and tall co-witnessed sights. (Photo: FN)
With a standard flush-fit 12-round magazine, the Compact MRD accepts all higher capacity FN 509 mags. When it comes to specs, the 3.7-inch barrel translates to a 6.8-inch overall length. Height is 4.8-inches and weight is 25.5-ounces. By comparison, this comes in slightly smaller than the 10+1 round Glock G48.
MSRP on the FN 509 Compact MRD is $799. Each will ship complete with a zippered case, one 12-round mag with a pinky extender, and one 15-round mag with an extended grip sleeve. For those in states that are restrictive, 10 round mags will be available.
If you are curious, Guns.com stopped by FN to get the deets from Pistol Product Manager Tom Victa on the best way to install an optic on the FN 509 MRD. Check that out in the video, below.