DUSK19 Graphite Gray Slide and GG Barrel, Gen3, RMR Compatible, 9mm Complete UpperThe DUSK19 upper includes a new DUSK19 profile slide made of 17-4SS and finished in either an attractive black nitride or a selection of great PVD options such as flat dark earth, oil rubbed bronze, or graphite gray. Front and rear serrations on the slide provide ease of chambering and press-check. The slide is reflex sight-ready with the DUSK19 optic cover plate included, which is compatible with both Trijicon RMR/SRO and Holosun 407/507/508 (Non-K Models) footprints. Additionally, this slide includes a co-witness or suppressor height Night Fision Stealth Series sight with a Tritium insert for clear sight vision from DUSK to dawn. The upper also includes a 416 stainless-steel PVD coated barrel with the new DUSK 19 profile and is available in either threaded or non-threaded. The hood pocket and lateral ribs reduce bearing surface for faster cycling and coating wear resistance.Swapping your OEM slide or finishing your pistol build with the DUSK19 Complete Upper enhances both the shootability, versatility and reliability of the platform.Key Features: Reflex Sight Ready with DUSK optic cover plate included Stainless steel PVD coated barrel with DUSK profile Front & rear serrations for ease of chambering and press checkSpecs: Non-Threaded Barrel Length (breach - muzzle): 3.90" Chamber: 9x19 OEM & Aftermarket parts compatible* LWA Nitride SS Guide Rod & End Cap