Hi Sam, yes it is real.

[Linked Image from northstate.com]

The difference is a long head so it can reach to the back of a box that you are nailing.

Here is some opinion.

Don't bother, get a stubby head and claw.

No one I know nails boxes through the back that the long head would help, but when you work between joists putting in staples the long head and claw are a major pain.

Bob

Bob Badger
Construction & Maintenance Electrician
Massachusetts