New Elzetta flashlight mount setup - pics

Do you use the sling swivel to push the button?

Yes, that is one of my favorite things about this mount - I just slide my hand forward on the handguard and push on the sling swivel which depresses the pushbutton switch on my Surefire G2.

There is a closeup photo of this on Elzetta’s website:
http://www.elzetta.com/Webpages/pushbutton_activation.htm

It also shows a more forward position for the flashlight that protects the the pushbutton switch from the sling (which would be important if you actually use the sling swivel for a sling).
http://www.elzetta.com/Webpages/tailcap_rotation.htm