American Heavy Metal/Hard Rock band Sinisters Army released their new single «Invincible». The release was recorded in "G13 Music Production" and mixed/mastered by Peter Graigs. https://sinistersarmy.bandcamp.com/track/invincible https://open.spotify.com/album/7xJXWyHMHliKmzaHmNOIwW Sinisters Army is a powerhouse of hard…