That's the Manly Man one for the big mitts... most of you fellas would be wantin' the medium.Mo2vation once bubbled...
It looks like the 1 1/8" big-eyed monster.
Now this is how I used to rig my SPG before I broke the o-ring. I still use and o-ring~ziptie or ziptie~ziptie on my regulator and an ziptie~ziptie on my lighthead.