http://www.surefire.com/EP3-Sonic-Defenders I ordered a set of EP3s awhile ago.And finally used them yesterday and today.They are pretty fucking badass!Specially for the price. Fit nice and tight.No movement. Was blasting .45 and 6.8 yesterday.And 5.56/.223 today.And they worked pretty damn well. Going to see how well that handle the beowulf sunday.As that's the loudest firearm I have. I ordered both medium and small,as I have small ear canals.And the smalls fit perfect.