How often should I clean my mags?

[Jerzees]

There is a good thread about cleaning, it somehow covers magazines as well:

How often do you clean your firearm?

We all hear about the mythical gun you never have to clean. However, in real life, we need to clean our guns regularly - especially if we want them to function correctly and we want to make sure we can demonstrate we’re responsibly armed by taking care of our equipment. How often do you clean your firearms?

But for fast answer:

• outside wipe off every time I clean my firearm (I focus on top of the follower to be sure it’s completely clean)
• detailed (take it apart) every 1000 - 1500 rounds or whenever I find malfunction