Should work. Those knobs should slide into the holes in the nut for the gas tube, and all barrel nuts should have holes that are the same distance from the bore to line up for the gas tube, so I would think all wrenches will work.
As for the pins, I don't know what kind of rail you have, but on my YHM the barrel nut was tightened with just such a wrench and then pins screwed through the tube into the nut to ensure it wouldnt come loose and rotate.
Do you already have the wrench?
"Always carry a small flagon of whiskey in case of snakebite. Furthermore, always carry a small snake." W.C. Fields
Last edited by TheDaggle; 12-30-2010 at 05:39 AM.