If you call LWRC and ask them for the wrench, they will give you my info. The IC / M6 guns use 2 different wrenches. You will have to check the bbl nut to see if it is a 6 or 9 point nut. The REPR uses a 4 point nut that is bigger in diameter. I make them for all 3. They are $200 each plus $12 shipping. Barrel portion is made from heat treated tool steel, welded to a 3/8" cold rolled 4140 steel handle. Each comes with a 3/4" muzzle devise wrench and a 1/2" square drive for a torque wrench. After they are made, they get parkerized. These are HANDMADE. That is why they are $200. I have sold over 75 of them, mostly to shops. If you purchase all 3 at the same time, I give a $75 discount and pay for shipping. Feel free to contact me through AR15. I will give you my info from there. I warranty these wrenches for 1 year of "normal" usage.
That is where the post crosses the Conduct Code line. It's okay to post that you make the wrench. Anyone that wants to buy one should be smart enough to figure out that they can contact you via IM or email to buy one, you just can't actively promote a sale in this forum. AeroE