Do you want your gun to work, or find it screwed up some day?
I had a friend telling me about his elaborate cleaning procedure - he was removing the gas key from the carrier. Guess what? He was also having failures to feed. Related? You bet your ass.
Keep cleaning that tube and you run the risk of the cleaning fluid burning in the tube and creating a problem, or of part coming off the pipe cleaner and causing problems.
Do you clean the tail pipe of your car after driving it? (on the inside) Do you clean the exhaust headers?
Your gun. Have fun. Don't bitch when it breaks.
-----------------------------------------------------
Please elaborate on the "cleaning fluid burning in the tube"
Have you seen this happen?.
How can that happen if the tube is properly cleaned and dry ,and a week later I go shooting. Is there a danger? I am not trying to be nearly as sarcastic as the question reads, I am curiouse.
Also , I have been playing with Ar's for a little while , still have'nt had anything 'break'.
Do I clean the tailpipe of my car?...ummm...no. Do you?