Buy new. 99% of the time a used airsoft fun is junk. Every used gun I've bought needed repairs from some of the most respected users on ASC at that. New is the best, sometimes you have to settle for used because that items is impossible to.get new.
Also I noticed people buy a new gun at $400 use the crap outta it for 2 years and then resell for $400 doesn't make sense to me.
Most of the time new is same price Or in some cases cheaper lol.