

i designed it specifically for the chonky boi receiver so it may require shims to line up a different receiver to the proper height. I recommend installing the mag catch first because it will allow the receiver to lock in place.
i recommend mounting it to a piece of wood to lock into a vice before using it.
Related to This Release


masterkey base aluminium version


Chonky Boi AR lower v5


BETA: cp33 30 round magazine


beta: 45 degree grip

