With fn's patented low-profile optics mounting system and unparalleled modularity of the fn 509 platform, the fn 509 compact mrd joins the ranks packing a full-size punch in a compact, optics-ready package.The pistol is 9mm and striker-fired with 3.7-inch barrel, standard 12+1 capacity and the capability to accept all higher capacity fn 509 magazines.The patented fn low-profile optics mounting system accepts nearly all commercially available miniature red dot optics and features blackout iron sights that co-witness.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.Frame Finish: BlackAction: DAOCaliber: 9mm LugerBarrel Length: 3.70"Capacity: 15+1Safety: AmbidextrousGrips: Black Interchangeable BackstrapSight Configuration: IronSlide Description: Black Steel