I bought my High Power and two spare magazines in 1968, carried them on two Vietnam cruises flying from carriers, and then stuck them in my sock drawer, still loaded with Navy ball, for thirty five years. When I again became interested in loud noises, I joined a local range, and fired off the ball without a misfire. I then cycled, oh, four thousand rounds through those magazines without a problem, and decided to replace their springs on general principles last year. I probably could have waited ten more years but, gracious, springs are so CHEEEEEP.
And if you are worried about your Glock rusting on your bedside stand, keep it in your sock drawer.
Cordially, Jack