9mm. 4" bushing-less bull barrel. SN: LW144049. Blued finish, checkered Springfield Arsenal logo hardwood grips. Single action semi-automatic magazine fed tilting barrel pistol with low mount white dot rear sight, fiber optic front sight, full-length guide rod, extended beavertail grip safety with raised palm pad, flat checkered mainspring housing, extended thumb safety, adjustable light weight aluminum trigger and skeletonized commander style hammer. Includes two magazines, factory plastic box, Allen keys and a cleaning brush.