What's up with the 223 brushes being a different thread (8-36) versus the normal 8-32? I was buying a bore and chamber brush this weekend and I was told they are a different thread than the normal 8-32. Sure enough they were right, but apparently some people make 223 brushes in 8-32.
The gas tube is sort of self cleaning. As the hot gas burns off it also burns off just about everything inside of it. If it gets plugged up or realy dirty, something is wrong with it. At that point i would replace the tube. I find that pushing a brush or long pipe cleaner through them, just causes more problems.
Just my 2 cents worth of info.
Nice 1 piece rod made from carbon or brass
.22 brush and a patch holder
solvent and lube
Chamber brush with a handle that doesn't rotate
m16 brushes (the green toothbrush looking things with a small brush on one end. they're like $1)
If you want to be anal about it you can get a bore guide