The Hagstrom H-II-N is an Electric Guitar used by Angus Young.

The Hagstrom H-II-N (or HIIN) is a vintage, double-cutaway electric guitar built in Sweden between 1969 and 1976. Famous for its ultra-fast, slim neck and unique onboard electronics, it served as Hagstrom’s answer to the Gibson SG. The guitar is highly sought after by vintage collectors and players today. It gained legendary status in 1975 when Angus Young of AC/DC used a bright red H-II-N as a temporary tour replacement while his primary Gibson SG was being repaired.