Man, I hadn't looked at free floats in a long time and didn't know they'd gotten so expensive. Take a peek here:
http://www.brownells.com/.aspx/pid=2...LOAT-HANDGUARD It looks like they come with everything you need to stick a new one on.
Also, remember to index and hold your front sight/gas block (which is made by YHM too) 7/32" off of that bbl shoulder so your gas holes will line up.