+1 on the WE (open bolt); all it really needs out of the box is an NPAS.
Is it going to need replacement parts down the line? Probably yes. But all GBBRs will. But the WE is good to go out of the box.
Originally Posted by QUATTROISKING
King arms is way better than the we, it's 100% comparable with we but it has full trades.
King Arms is a WA/G&P clone and as such isn't compatible with WE. Please refrain from spreading misinformation if you don't know what you're talking about.