That depends, while I've seen the parts Ace makes I would either leave it thumbhole or see about a clubfoot. I have no desire for a side folder, underfolder or any other kind of folder nor another 6 position. I shoot for accuracy and without a stock it's spray and pray which IMO is a waste of ammo. I just have to look at reliability, parts cost/availability and whether I'll gain in accuracy or if I should just say screw it and trade it off for a .338RUM. But first and foremost I want to exhaust every effort to find an affordable A1 barrel since I do already have the AR.