"A far cry from the garden-variety 1911, the Springfield Armory 1911 Emissary AOS Semi-Auto Pistol features top-shelf upgrades and easy optics attachment for performance that puts others to shame. The slide features the Agency Optics System (AOS) slide cut that accommodates a wide variety of popular optics including the Trijicon RMR, Shield RMSc, Leupold DeltaPoint Pro, and Docter/Noblex. Each plate features an integrated rear sight that provides the ideal optic height and sight co-witness. The Emissary comes equipped with a match-grade, stainless steel, heavy-profile bull barrel for maximum accuracy and reduced muzzle rise. The ""Tri-Top"" cut slide with 40 LPS flat-top serrations aid in control and slide manipulation. Black Cerakote finish for corrosion resistance. Tritium luminescent front sight/black serrated rear. Forged stainless steel frame. Forged carbon steel slide. VZ Grips Thin-Line G10 Grips. Note: The 1911 Emissary AOS ships with a cover plate; additional plates are not included. Agency Optics System Match-grade, stainless steel bull barrel Forged carbon steel slide Slide features ""Tri-Top"" lightening cuts Black Cerakote finish Tritium luminescent front sight/black serrated rear VZ Grips Thin-Line G10 grips"