Chain fed mass accelerator cannons

A Mass Acceleration Cannon, coilgun or Gauss gun,   is a type of projectile accelerator consisting of one or more coils used as electromagnets in the configuration of a linear motor that accelerate a ferromagnetic or conducting projectile to high velocity (as high as 0.99c).

The MACs on a Quasimodo (and many others) are fed projectiles mounted on a "chain" similar to the Pre Astro Terran Browning .50 Caliber Machine Gun (M2 machine gun or "Ma Deuce).