NFL's Willis McGahee -- I'm Lasering My Armpits ... And Proud Of It!!!

Here's Willis McGahee once again proving NFL tough guys can make anything look boss ... including getting laser treatment on their armpits while wearing designer shades.

The former All-Pro running back channeled his inner Carrie Bradshaw ... and hit up Flawless Icon MedSpa in Miami to zap away that pesky pit bush.

It was McGahee's first session ... it usually takes a few before the hair stops growing back permanently.

Willis claims the process barely hurt ... ranking his pain as a 1 on a scale of 1 to 5.

So, guess this means no more waxing???