I've really been enjoying the factory sights - I just black them out with some flat black spray paint. I ordered some dawsons but their front sight is too small for my liking and tried a fiber front from CZ custom but still like an all black front best. I put talon grips on them - have been waiting for them to fail before I went full stipple, actually been impressed with how they been holding up. Here is a thread I did on the chop
http://www.czfirearms.us/index.php?topic=97262.0