With FN's patented Low-Profile Optics Mounting System and proprietary auto-indexing compensator, the FN 509 Compact MRD Comp with quick-detach compensator joins the ranks packing full-size performance in a compact package. The pistol is striker-fired with a compensated barrel featuring an approximate 25 percent muzzle flip reduction. The optics mounting system accepts nearly all major optic footprints and features all-black co-witness iron sights. The ambidextrous controls aid in manipulation and the texturing on the two included backstraps provides better recoil management.FeaturesFN Quick Detach CompensatorFN Low Profile Optics Mounting SystemCo-Witness Height Iron SightsAmbidextrous ControlsLoaded Chamber Indicator