Nice kill and good looking gun there wormy! I have been debating a free float handguard on my Bushmaster for a while and finally pulled the trigger lol. Went with a Midwest Industries ss-series extended carbine guard, going from standard carbine length to 10 3/16 extended carbine. Think I have everything I need, new to modding this deep, I ordered a new low pro yankee hill gas block, gas tube roll pin, end cap for guard, spanner wrench for jam nut and a upper vice block. Ordered a BAD lever too, wasn't sure on that one, but for $25 what the heck. Any advice feel free to chime in! I have to get some pics when I get it done. Up until now I have polished the sear, replaced trigger spring with a set of JP springs, added a Mako magwell grip, single point sling adapter, and topped it off with an Eotech 516 and g33 Magnifier.
Update: here is a before and after pic of the MI free float handguard.
I definately like the feel of this one better than the stock. Was a quick and simple install, less than an hour. Good quality product, nice fit and feel.