It ain't too common to see someone pimp out a pair of rare $6,000 Nike Air Mags -- but Washington Redskins defensive end Ricky Jean-Francois did just that ... and TMZ Sports has the pic.
The kicks -- more commonly known as the "Back to the Future" shoes -- are hot commodities in the sneakerhead community ... but Ricky wanted to do something special with his pair.
So, he brought 'em to Dez Customz and Kreative Customs -- who spent 50 hours lacing up the sneaks with some custom Marty McFly inspired art .