The song chimes with the #WeMakeEvents protests which took place this week, in a bid to save the live music industry.
The band will release their new album in October via Pure Noise Records.
The band have also released a music video for 'Habitual Decline'; the first single to be taken from the album.
It follows the release of the trio's debut single 'don't worry' last month, find out more here.
The band have also released remixes and demos from the album, find out more here.
The track features guest vocals from Lizi Blanco of The Beautiful Monument, check it out here.
Headliners Mercyful Hate and special guests Dimmu Borgir will appear at the festival in 2021.
'Bulletproof' is the the second song from the band's recent twin-track release, 'Civil Unrest'.
A video for lead single 'In Cleansing Fire' has also been released.
The 7-inch will be released in September via Joyful Noise Recordings.