It's not magic: The SIS-Barrel can change the trajectory of any standard-issue cal .50 round to hit a target,

and is also fully compatible with DARPA's revolutionary new EXACTO guided round.

12,7 x 99 MM NATO Even though the EPIC A3 is packed with cutting-edge technology, it doesn't require any special ammunition to operate. The SIS-Barrel can change the trajectory of every metal-based standard-issue cal .50 ball, tracer, armor-piercing and incendiary projectile.