Thank you, @Frank73!
I do about twice a year.
At least once a year. But I strip and clean everything in the gun safe at least once a year…
I strip and clean my magazines once or twice per year, whether they need it or not. Never have had a problem with my magazines.
Once a year. More often during inclement weather. Also check at same time to ensure springs are within spec.
Monthly. I used to every time I went to the range. That gets to be a lot of mag take downs. These days, I nylon brush the followers and give them a general wipe down after the range. I do give them a light oiling with Rem oil when I do take them apart. Some of my old mags had rusty springs after a few months of not cleaning. Maybe I need to move…I think I post about rust more than anyone.