Originally Posted by bigbulls

It's a shorter and slightly wider cutting version of the regular muzzy. They typically fly better than the standard heads do because of the reduced surface area of the blades.

They are Muzzy's answer to the short and wide broadhead craze that Slick Trick started about 10 or so years ago. The MX4 is almost an exact copy of the original slick trick magnum except that it's made from aluminum instead of steel.