I just checked...the M Bars are the ones with Plugs, but I don't remember a choice...Not sure that it would matter in my application.

For me, I liked the way the M Bars looked and went that path...I had been thinking about different set ups for this bike and considered the extremes, including Ape Hangers. In the end, I went with the M Bars because of the overall vision that I had for the bike and the more aggressive stance. I have not been disappointed at all in the set up.

Hope this helps a bit,
Steven