Yeah that is what I have too. Mine permanently flexed...
There is an arrow engraved on it to show the direction to turn. So if you are taking a barrel nut off / loosening you should probably take the wrench off and put it on the opposite way.
I was thinking of getting a Troy Extreme to replace the magpul moe handguard i currently have. I'm wondering if anyone has tried using the magpul polymer rail sections instead of the rail sections that comes with the Troy handguard. I wonder because i've noticed the magpul ones are lighter than the regular standard rails i've compared it to.
The troy sections aren't rounded either, but they do have raised spots to match the holes in the handguard.
https://lh3.googleusercontent.com/_5...ms_picture.jpg
The VTAC extreme rail sections are metal and I assume the Troy rails are also. I wouldn't bother trying to get the magpul rails to work. A quick examination of my VTAC rail and the magpul rail that came with my RVG make me think it would not be as solid of a lock up.