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Just wondering if you can leave your PS90 mags loaded for a long period of time. I know some mags like standard AR-15 mags will lose spring tension over time and then others like a Beta-C mag you can leave loaded forever.

Obviously I don't plan on leaving the ammo in there for the next fifty years, but will an extended period of being loaded cause any decrease in function in the mags?

Sorry if this has been asked before, but for the life of me I can't find the answer!
 

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This just came up - but I can't find where the thread went...

I only load my mag to 40 rounds - for the one I keep loaded all the time.

Now at the range - I do load to 50.

A few people have posted in the past (can't remember if it was here or other forums) - that after longterm storage, their mag spring was a bit shorter (more compressed).

Now, there are aftermarket mag springs out now - I have yet to try them, however.

There are some that keep their's loaded at 50. I don't do it.
 

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I have a test mag that's been kept fully loaded for nearly 2 years now. I test it at the range every few months and so far it's still functioning 100%. Last weekend I tested 4 other mags that have been fully loaded for nearly a year and 3 of the 4 functioned perfectly, the 4th had a FTF after the first shot but functioned perfectly after that (I have another mag that isn't kept loaded that has the same problem, I'm going to have to take them apart and see if I can figure out what's causing this).
Tomac
 

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This just came up - but I can't find where the thread went...
i wonder if shipwreck means a question i posted in a poll thread of the number of mags people have.

i have 3 right now and they have been loaded from day 1 as well. not that i've been doing much shooting while waiting to sbr mine.
 

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I have read this may times. You can leave your mags fully loaded. It is the compression and decompression that wears out the springs. Some folks like to load 28 or 29 in AR mags because it is easier to load in the rifle when the bolt is closed.
 

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"GLOCKCRAZZ" I have read this may times. You can leave your mags fully loaded. It is the compression and decompression that wears out the springs. Some folks like to load 28 or 29 in AR mags because it is easier to load in the rifle when the bolt is closed.
The magazine problems most people encounter are with with vertical box magazine style rifles. Trying to load a full magazine into an AR with the carrier forward is tough with some magazines. With the PS90's it is a very different magazine. Fully loaded magazines can be easily loaded in a PS90 by just slapping them down. The loading and unloading of a magazine is what stresses the spring, not leaving it loaded.
 

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wi57 said:
I have left mine loaded with 50 rounds since day one. Only 400 rounds through it so far. I'll let you know when it fails. :?
well i forgot what company i got the new springs from but i been testing out the springs i bought i got one mag loaded with 50 rounds and it has been like that for almost a year
 

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i keep several of my mags loaded (12 to be exact) and i havent had a problem with them but if im not mistaken you can get new springs from mag parts....
 
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