xmag frame question

[dark blade]

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

http://i198.photobucket.com/albums/aa149/minniman42/Emag_ULE_3.jpg

http://i198.photobucket.com/albums/aa149/minniman42/Emag_ULE_1.jpg

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