Couple hundred in mods, and it'll prolly be pretty good.
And you are limited. Not all hand guards fit on it. It has some different size parts than say dpms pattern
Surely someone makes a hand gaurd that replaces the 2 piece plastic. And I would think the barrel O.D. is .750", for an adjustable gad block, no?
Gas block is 750 to the best of my knowledge. If you have something that retains the current barrel nut it’s fine, but if you get a hand guard that has a different barrel nut it may not fit.
Also have seen some people say non psa barrel could have issues