My Mags haven't shown one, but I seem to recall seeing one a few years back.
Their stuff was good quality, and they offered some quality parts. Sadly, they weren't as attractive as others available. They did various alloy and Ti bars, alloy, magnesium and carbon bar ends. They also did steel and alloy stems as well as alloy and carbon seatposts. I recently bought their foam grips as they only weigh 11 grams each! Oh, they made saddles with a variety of rails too.
That was around 1994/95, but I think they went off the boil a bit after that.