Neomutt Pipe Attachments to Shell Program from Menu

The header of the attachments menu in neomutt gives the options

q:Exit s:Save |:Pipe p:Print ?:Help

I assumed that the Pipe option would allow me to pipe a chosen attachment to the shell. In particular, maybe I want to open a file in a way that bypasses the mailcap defaults.

Suppose I wanted to open a file from the attachment menu with open. Is there a way to achieve this with Pipe and not by going to edit my mailcap?

Thanks