There is a lot of hate for anything REM/Bushy but I got one, everything is properly built/staked and tight...
The gaz block/barrel seem to be some odd size from the informations I gathered and serve no purpose externally, but is in the way of putting a freefloat... I ended up hacking mine off so it's all good but more trouble than just getting a low profil as you could do with many other models.
For the money it's not a bad deal at all, some may say it's a gamble with the kinda random QC, but seeing how bushy are some of the most hot selling across North America, if it was all that bad there would be A LOT of returns IMO. If you want a second AR and you're buying for range fun and not some kind of hard use/life depends on/SHTF/comp, I'd say go on.