The FN 509 MRD FOS is patterned after the handgun chosen by the LAPD. With a flat dark earth finish and factory-milled slide this limited run includes five magazines. - Upgrades include the flat-faced precision trigger and the FN Low-Profile Optics-Mounting System. The front fiber optic sight (FOS) co-witnesses with most MRDs for a clear sight picture day or night. The industry's most adaptable optics mounting platform allows rapid installation of the most common MRDs. - A smooth drop-safe trigger has a positive wall before a clean break. With the target-crowned hammer forged barrel a lifetime of tight groups is in reach. - PRIMARY FEATURES - FN Low-Profile Optics-Mounting System - Flat-faced precision trigger - Co-witnessing fiber optic front sight - FRAME - Duty-safe trigger with =6.6-lb. pull - Enhanced grip texture - MIL-STD-1913 rail fits most lights and lasers - SLIDE - Add most MRDs in minutes - Long-wearing PVD finish - External extractor; loaded chamber indicator - BARREL - Cold hammer-forged SS barrel - Recessed target crown - Polished chamber and feed ramp - MAGAZINE - Steel body high visibility follower and polymer base - Five 10-rd magazines - WEIGHT: 28 OZ. - OPERATION: DA - SLIDE/FRAME FINISH: FLAT DARK EARTH - SIGHTS: STEEL CO-WITNESS FRONT FIBER OPTIC - FN 509 MRD FOS - 9mm CALIBER - 10 Rd. MAGAZINE - 7.4'' LENGTH - 4'' BARREL LENGTH - INCLUDES - BALLISTIC CASE - FIVE 10RD MAGAZINES - FOUR MRD MOUNTING PLATES - TWO BACKSTRAPS