Well, this has been informative. It really has. I've got my LaRue cranked down and nothing is moving, etc.
However, I had to crank the throw levers so much before the mount would stop moving on the rail that for all intents and purposes, my Larue mount is no longer a "quick detach" mount.
It probably takes me just as much time to throw the levers as it does to unscrew the nuts on the factory mount that came with the ACOG.
I'm wondering what advantage(s) the LaRue mount has over the factory ACOG mount that would justify the money spent?
I guess the main advantage of the larue is a repeatable zero, that, and it looks better than the factory mount, but I don't know why the factory mount wouldn't have a repeatable zero if taken off and installed again. Plus, there is no possibility of the factory mount creating 'unusual wear' spots in the upper as reported in this thread by some who use the throw lever kind.
God Bless,
David