Not much, afteral it's just the name, it's not that I'm making this for an AU or something.
The charging handle was placed on the left side and the gas system was replaced with a HK style piston, other than that it's just your standard AR without a dust cover.
More stuff to come with this reciever though.
_________________ Local self claimed GB archivist.
Big time kitbasher of GB related things and creator of bad ideas.