Interesting. I don't think I've seen this before. Magazines like GQ often commission custom type. This is like a cross between ITC Avant Garde Gothic and Helvetica: the circular rounds and simplified forms of a Geometric with the regularized widths (wide B,E,L,S,T,U,s) of a Neo-Grot. It seems likely that GQ asked someone to modify Avant Garde to include aspects of Helv. (see ‘s’ from Neue Haas Grotesk below).
The closest thing I know on the retail market is Scandia.