This is a SMG that fires Spider bots instead of flash grenades at the expense of an entire ammo clip. It can be found in the Cairo Archology on your second visit. From floor 107, near the Templar recruiting booth and Tarsus academy, go down the ramp into the maintenance area. Make a left and look on the right wall for an opening. Crawl in, make a left, then look left for another opening. Push the junk out of your way and enter the little hiding place. It is near a corpse.