Sling Shock

Designed by Shockwave, the Sling Shock (not to be confused with Slingshot) is a Cybertronian weapon that fires electrified bolas which can ensnare and coil around multiple victims.

Transformers: Fall of Cybertron
Inspired by the "improvements" he had made to the Lightning Strike Coalition, Shockwave decided to upgrade his own arsenal, a project which resulted in the creation of the Sling Shock. When Grimlock escaped Shockwave's captivity, the reconfigured Autobot came across a Sling Shock, accompanied by a holographic log detailing its conception.