ok... maybe someone can help me out here. I know that with lukes milling he takes out as much as he can to make it ULE'd
my question is this, with factory ule'd lowers, are the insides of the frame ule'd as well?
here is a picture to show what i mean


someone with an xmag or other type of factory ule'd frame please let me know
my question is this, with factory ule'd lowers, are the insides of the frame ule'd as well?
here is a picture to show what i mean


someone with an xmag or other type of factory ule'd frame please let me know