My cousins M16 for some reason on semi does double shots, or even has burst where it seems like its on auto for a sec. We called APD to see if they know anything, and said it might be the hop-up or something else.
This is a week old gun, and he thinks it might be that he was cleaning berral of the gun with the hop up not on normal. ( We heard that can damage the hop up? ) We are not sure. Does anyone know what it could be?.