Cut the Architect’s Hand is a hateful barrage of riffs. As evidenced by the Richmond trio’s new release, “Blood Eagle,” on the local label Aunt Mary Records, the group’s antagonism is its defining characteristic. That’s a good thing. The gnarled balls of hate that are the songs “Bled Through Your Coat,” “Mannequin Teeth” and the title track seethe with trash-metal precision. It’s an incensed form of Zen predicated on oppressive volume and ill will — and these purveyors of animus intentions do it well. You won’t be punished for your anger, theirs will punish you. Cut the Architect’s Hand brings the pain to McCormack’s Irish Pub on Friday, March 7, with Strike the Chord and Burn and 45 A.D. Doors open at 9 p.m. Admission is $5. facebook.com/macspub.