AC4 is the no frills vision of musician Dennis Lyxzen, (Refused, International Noise Conspiracy, Invasionen, etc). In AC4, he is joined by friends and former members of Umea Hardcore bands DS-13, Step Forward, Regulations, E.T.A, and The Vectors. Together AC4 pay homage to bands like Minor Threat while adding their own spin to the tried and true spirit that brought inspiration in their youth.