I have a Colt AR that has a staked castle nut. It is staked in two spots. Anybody have any suggestions on removing it so I can put on a single point sling attachment? I used my buddies AR tool (made by Wheeler), but the tool isn't the tightest fit and slipped off the nut once, so I decided to ask before I mess it up worse. Who makes the best AR wrench? Also what is the best way to anchor the lower while I remove the castle nut. I have a rubber jaw vise but fear torqueing the lower.
This nut is tight!
This nut is tight!