Blaster Knuckle is a manga by Shizuya Wazarai. Set in America in the 1880’s, this series takes place in an alternate history where KKK members are actually flesh-eating demons, using the racism of the time as an excuse to hunt and eat black people. One man named Victor Freeman knows their secret and has made it his quest to hunt down and kill as many as possible. To do so, he uses the titular Blaster Knuckle, a modified gauntlet that shoots silver bullets on contact. However, the demons only change shape at night, and turn back in the morning without anybody knowing better.