Ok, so probably a stupid question. But ill just go for it. The environment I have been working lately has exposed myself and my duty gear to significant fine dust/sand. I have noticed that my magazines sound a bit "crunchy" when I was checking a round out and showing my wife what it looked like. Well like a good investigator, I wanted to see what the problem was, so I started feeding out rounds by hand, and then no more fed until I tapped the mag. This could be bad in some situations obviously. This led me to believe that there is some dust in there and I need to clean out the inside of the magazine. That being said, how would I go about it? Any further advice I can take and keep myself safe?