junji itou, shintaro kago, left hand of God right hand of the devil, gore mangas, erotic gore manga, b-movie manga, go nagai and hideshi hino. I've read so much shit

Fuck this is gonna sound so stupid, but theres a body horror manga about a guys hand turning into a flesh gun.., idk its that nasty in your standards but it certainly looked Fleshy

The stupid part is i dont remember the name lol

>shittymeat you talking about Jagaaan? or parasite? there's actually a lot of "hand"gun stories. buster knuckle

Just googled it, it was jagaan LMFAO

This is probs not what youre looking for, but maybe look into innocent? Def has gore in it