Springfield Armory 1911 Emissary 45 Auto (ACP) 4.25in Stainless/Black Cerakote Pistol - 8+1 Rounds - The Emissary 4.25in AOS in 45 Auto (ACP) features a Black Cerakote finish and custom 1911-style enhancements, offering a serious defensive pistol. Its "Tri-Top" cut slide with 40 LPI serrations houses a heavy-profile bull barrel for accuracy and reduced muzzle flip. The forged slide and frame include a Picatinny rail, merging form and function. The Agency Optics System (AOS) adds versatility, fitting popular footprints like RMR, Shield, Delta Point Pro, and Docter. Each AOS plate has an integral rear sight for proper optic height and a visible co-witness in nearly all configurations, enhancing precision and defensive capability. Tri-Top Slide: The 4.25in Bull Barrel assembly is fit to a Tri-Top slide with lightening grooves and a serrated top strap to reduce glare. Optics Ready: Developed in collaboration with Agency Arms, AOS employs a series of plates fitting a wide variety of today's most popular optics. The Emissary AOS Ships with a cover plate. All Black Finish: An all-black Cerakote finish pairs flawlessly with the blacked-out grips, trigger, and barrel for a covert aesthetic.