My two boys and I are getting ready to start 3 AR builds, probably all three will be Grendel's. Mine will probably be a 24" not sure what the boys want to do. Lots of options to choose. Only thing i know for sure so far is the stripped lowers(cause I've already bought them) The hand guard and stock. Other than that, I've no choices. Every time I think I got it, I see something different. More than likely all the barrels will come from BHW, but who knows for sure.