They all come with an torque wrench adaptor to fit inside the tines inside your packaging
gadget
That cheapo surefire wrench adaptor sucks.
If you do more than one, get the AAC black out wrench tool. Works like a charm on surefire 3 prong as well.
http://www.advanced-armament.com/BLACKOUT-Flash-Hider-Tool_p_477.html