1991 12" single of prime Brazilian death/thrash metal from Max Cavlera and co, tajen from the band's Arise LP. Feat. the b-sides "Orgasmatron" and "Troops of Doom".
Some minor wear to the sleeve and vinyl.
- A Under Siege (Regnum Irae)
- B1 Orgasmatron
- B2 Troops Of Doom