I have a TRIM rail that i am putting on a 10.5 LMT upper. I am having trouble finding the right wrench. I look locally for a 1 3/16 crowfoot wrench so i could use my torque wrench. No luck finding one locally. Even on line they are a little hard to find or expensive. So i figured would get a plain old 1 3/16 wrench and not use the torque wrench. I picked one up but it is too wide to fit in the slot on the "barrel nut". I guess i could go back to the store and try some of their big adjustable wrenches. But i just dont like the idea of not using a torque wrench on the barrel nut. How are you guys doing it? What wrench are you using and any good sources for a 1 3/16 crows foot?