Barrett-Arasaka Light-20

The Barrett-Arasaka Light-20 is a sniper rifle (heavy weapon)

''The cyberpsycho hunter's favorite. Almost 2 meters long, this "cannon" fires a depleted uranium shell at supersonic speeds.''

Source

 * Blackhand's Street Weapons 2020
 * Corporation Report 2020, Vol 1, Arasaka & IEC