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					Originally Posted by  Chainsaw13
					 
				 
				Yea, I"ve been looking for a RockRiver or CMMG setup. 
			
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 Not bad from either company, but if I was purchasing any used upper, I'd be a little hesitant if I couldn't see it first. Reason is I'd like to be able to check the crown for any damage and wear to any other parts.  Brand new I'd have no worries as I can deal with the company to fix any issues.