QC, design (thinking things like ambi lowers, Geissele's REBCG, Noveske's double chrome, and piston vs DI kind of design details), and materials are what it boils down to. That's kinda reductionist but that's what it is.
The rifles you listed are low to mid tier IMO. Not pooping on you personally, that just where I see them in the food chain. And BCA really is more mid tier, they've definitely come a long way since they started production.
Last edited by Verylargeboots; 09/06/22.
