Got an A2 upper and am looking at mounting a Bushnell Trophy red-dot.  I got a cheap aluminum mount, but  it interfers with the iron sights.  How much wider is a BMAS wide view.  Particularly compared to the ARMS#2.  Also I see both of these in my Bushmaster catalog, but could not find the BMAS mount on their web sight.  I couldn't find a BMAS home page either.  Who else would carry these?  

You know, as I look closer at the catalog, it is pretty apparent that BMAS would not have it's own homepage because it stands for Bushmaster Modular Accessory System.   Sorry for the stupid part of the inital question, but the rest of it still stands - How much wider is it?

Check with Yankee Hill (YHM), they make most of Bushmaster's B.M.A.S. line...