This is a Brad Paisley - Seymour Duncan collaboration, a Telecaster neck pickup. It's is supposed to be there in an Esquire, tucked away under the pickguard hence no mounting flap seen here. That's the reason why it's called the Secret Agent - presence unseen. It's unfortunate that the sound bytes / demo videos only showcased a certain genre application, for all we know, it might be just as good for heavy metal.
On that note - goodbye August 👋
PIC: PG
