Sometimes you might want to mount an optic to a fixed carry handle AR. There are a few different ways to do so, but I think one of the best is the old A.R.M.S. #02 mount.
There are many knock offs of the A.R.M.S. #02 that are no where near as good quality. Many cheap similar scope mounts that are made in China break when you try to tighten the mounting screw. Now I am not much a fan of ARMS products, but this one does what it is suppose to do. So I keep one around in case I feel the desire to slap an optic on an A1 or A2 upper.
Today I learned of a LaRue product I didn’t know about before. It is conveniently labeled “ARMORER’S TOOL”.
It is simply a piece of plastic holding a LaRue adjustment wrench and a hex key Allen wrench for tightening or loosing LaRue ACOG mounts. A nifty little combo tool for those that use a good many LaRue ACOG mounts.