Manstractor is a brutal death metal and grindcore band from the Mülheim an der Ruhr/Oberhausen area of Germany, active since 2013. Their sound combines the visceral extremity of brutal death metal with grindcore's relentless velocity, forged in the industrial heartland of the Ruhrgebiet.

Manuscriptum is a brutal death metal band from Irkutsk, Russia, formed in 2012. They unleash unrelenting brutal death metal fury.

Martin and the Vampires is a brutal death metal and grindcore act from Sundbyberg in the Stockholm metropolitan area, active since 2018. The band channels B-movie horror themes into visceral, blast-driven extremity.

A brutal death metal act from West Yorkshire, Masochist has been delivering punishing extremity since 2015. The band channels the northern English underground's taste for uncompromising heaviness into guttural, blast-driven compositions.

Mastabah is a brutal death/black metal band from Gdańsk, Poland, formed in 2015. They forge extreme metal at the fierce intersection of black and death metal.

Mastectomy is a brutal death metal band from Poznań, Poland, formed in 2014. They unleash unrelenting brutal death metal fury.

Mastic Scum are one of Austria's most internationally recognized extreme metal bands, a brutal death metal and grindcore outfit from Salzburg founded in 1992 by Harry Gandler, Man Gandler, and Linga Moser. Their sound is defined by machine-precise rhythms, dissonant riffing, and a vocal onslaught spanning guttural lows to harsh highs, and they have released six studio albums including 'ICON' on MDD Records in 2022. A seventh album is currently in production as of 2026.

Mastication of Brutality Uncontrolled is a technical slam/brutal death metal band from Aschaffenburg, Germany, formed in 2026. They unleash unrelenting brutal death metal fury.

Maximize Bestiality is a brutal slamming death metal duo from Hamburg, Germany, featuring vocalist Drohbert and guitarist Dr. Faust. Their releases including "Omnihilation" and "Extraterrestrial Skolexomorphic Infestation" deliver the ultra-heavy, breakdown-laden extremity that defines the slam death metal underground.