The AA19 is the newest addition to the Adams Arms lineup. This performance driven, compact 9x19mm handgun features our profiled VS19 slide. Our polymer frame has refined ergonomics and an enhanced grip texture. It comes standard with a Tango Down Vickers Trigger, a matchgrade threaded barrel, multiple mounting plate options for miniature reflex sights, and a picatinny accessory rail. - CALIBER 9MM - MAGAZINE (2) 15rd capacity - BARREL Threaded 1/2 x 28 TPI - OPTIC READY Mounting Plates Compatible with the Following Optics: Trijicon RMR, Leupold Deltapoint Pro, Burris Fastfire 3, Vortex Venom, Viper, and Razor, C-More STS, Shield RMS, Holosun 407 & Holosun 507