Posted 2 May 2016 (edited) Rehv Arms Sig 516 barrel nut wrenches. I was asked to produce a wrench for the Sig 516 by Rehv Arms. These are high quality wrenches. Interested parties should contact Rehv Arms at (253)630-5900. (EDIT) Yeah, looks like I mismarked these LOL. No matter, for the Sig 516 they fit like a glove! Perfect. Edited 5 Jun 2016 by Tom Liemohn Kent Washingto Correcting information. Bonney Lake, Washington, United States Share this post Link to post Share on other sites