You are looking at a Tisas nightstalker chambered in 9mm. This pistol comes with a threaded barrel and front night sight. The slide is optic cut for a red dot. The slide also has lightening cuts forward of the chamber. This pistol comes with (1) 18 round magazine and (1) 20 round magazine as well as two additional backstraps and two additional sizes of grip panels. This pistol has been dropped once as shown by the marks on the optic cover plate.