It's very important to clean your magazines, more so in my experience than it is to clean the gun itself. If your self-loading firearm malfunctions, it's usually the magazine causing it.
During matches, I clean a magazine every time it gets dropped on the ground. Pop the floorplate off, scrub with mag brush, wipe inside of magazine tube, follower, and spring with silicon cloth, reassemble. Takes less than 1 minute per magazine.
I also number my magazines, so if one of them starts to go bad I can cull it.
- Chris