FN's patented Low-Profile Optics Mounting System and proprietary auto-indexing compensator the FN 509 MRD compact 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 compact comes standard with a 12 and 15 round magazines. 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. Specifications: CALIBER: 9mm OPERATION: Double-action MAG CAPACITY: 12/15 Rd. WEIGHT: 25.5 oz. BARREL LENGTH: 4.02" OVERALL LENGTH: 7.4" TWIST RATE: 1:10" RH HEIGHT: 5.2" / 4.8" WIDTH: 1.35" TRIGGER PULL: 5.5 - 7.7 lb.