I need your help Brothers.
I have a Sub2k Gen2 9mm. The barrel on this firearm came with a single jam nut to lock down the front sight but its also doubling as a thread protector since it covers the threads completely. It is 0.4250" in length.
I have already have the MCarbo muzzle brake with its own exclusive jam nut and want to install it.
The problem is I cannot seem to find a jam nut that I can use to lock down the front sight. Also I want to make sure the jam nut is not too long since I want to have room to install the Mcarbo muzzle brake and its jam nut.
Earlier I had applied rocksett on that jam nut/thread protector, I think I read earlier I can simply spin this off? I had applied 25 ft pounds of torque on it so its not a whole bunch of torque I have to undo.
Any help or link would be most appreciated. Please can someone point me to a jam nut with maybe .190" thickness for our Sub2k?