I have a TR24 in a Bobro QD mount on my rifle. My particular mount is the extended eye relief model which I like a lot because I've taken to shooting NTCH. BUS are Magpul Gen 2 front and rear. The rear BUS will deploy with the optic mounted but co-witness is most definitely out of the question. Due to the optic's magnification you cannot get a clear sight picture through the BUS. The front sight is blurry and it's difficult to distinguish the sight post. Overall I'm happy with the setup though.
http://i365.photobucket.com/albums/o...DSC03878-1.jpg

