Methyl Methacrylate. Stabilit Express or its twin UHU Acryilit here in Europe. Resin + powder (hardener). Total pain in the *ss to work with (pot life is 5-8min) but strong bond to ABS.
I've also used liquid acrylate glue from HobbyKing with great success. Much easier to mix and so cheap (sub $2) that I always mix the whole 20ml set in order no to have ratio issues. Can be found on aliexpress too.
Epoxy usually s*cks on ABS.