.357 Sig. 4.5" barrel length. SN: CDZ946US. Black Oxide finish to the slide with black synthetic frame mounting a squared off triggerguard with front and rear texturing on the gripstraps and no finger grooves or rests. Item mounts Trijicon triple dot Tritium night sights and standard controls. The slide shows the standard GLOCK 31 AUSTRIA make and model mark on the left slide. Comes in a black plastic "Tupperware" pattern container with the lid marked GLOCK "SAFE ACTION" PISTOL. Included in the case are a trigger lock, plastic cleaning rod, nylon bore brush, two Gen 3 magazines, and a magazine loading tool.