I use this
http://www.brownells.com/gunsmith-tools-supplies/rifle-tools/wrenches/ar-15-m16-barrel-nut-wrench-prod27412.aspx
and this
...
Type: Posts; User: mikee
I use this
http://www.brownells.com/gunsmith-tools-supplies/rifle-tools/wrenches/ar-15-m16-barrel-nut-wrench-prod27412.aspx
and this
...