I replaced my stock front sight on my Umag with a Lyman 17AHB globe sight. It is about the same hieght as the stock blade and has 7 different inserts to choose from. I also have the Lyman peepfor the rear sight.I posted some shooting results with it on this thread
http://www.huntingnet.com/forum/tm.aspx?m=2949769including a rough picture through the sights showing the front insert I have in there right now.