FN America, FN 509 Midsize MRD, Semi-automatic, Striker Fired, Mid-Size, 9MM, 4" Barrel, Polymer Frame, Flat Dark Earth Finish, 2-15Rd, Ambidextrous Controls, Non-Manual Safety, Optics Ready This evolution of the FN 509 Midsize, now featuring the FN Low Profile Optics Mounting System, gives you the option of direct mounting more than 10 different miniature red dot optics to your concealed carry pistol. The FN 509 Midsize MRD features a four-inch barrel and slide with optics mounting package, a midsized frame, and 10-round capacity. 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. Brand FN Category Pistols Caliber 9mm Luger Model 509 Series Midsize MRD Frame Finish Flat Dark Earth Action DAO Barrel Length Range 4" to 4.99" Slide Description Flat Dark Earth Steel Capacity 15+1 Frame Material Polymer Grips Flat Dark Earth Interchangeable Backstrap Hand Right Includes 2 Magazines / Optic Mounting System Max Capacity 15 OAL 7.40" Safety No Manual Sight Configuration Iron Sight Style Contrast Twist 1:10" Weight 26.50 oz Barrel Description Cold Hammer Forged Barrel Length 4" Search Code FN Similar Items HG9MM