Allen size for xtreme mod-22 trigger?

chevytruck_83

Student of the sport
Full Member
Minuteman
May 3, 2013
242
60
Can anyone help me find out what size Allen wrench is needed to adjust the sear engagement on the xtreme mod-22 triggers? I looked on their site and the only thing I found was to adjust the pull weight which is 2mm and slightly larger then the one I need.