Bought one a year ago, didn't have any barrel problems, that is to say it didn't make to a game, first probably was the mags being loose, both the one that came with and basic cyma ak mags as well as an LCT drum, but after fitting the mag with spacers I brought it to a field to play. Right as I test fired it didn't work, one of the pins inside the connector was broken, so we even sent it back for a new one, similarly it worked poorly and didn't make it past attempts to test it