This is a discussion on Leaving Glock Mags Loaded within the Related Gear & Equipment forums, part of the Defensive Carry Discussions category; Originally Posted by glockman10mm A good practice is to leave a round or two out, so the mags are not under full compression, and rotate ...
I've had my Glock 19 mags for over 10 years. They are always loaded. I have never had a failure to feed (from the mag) issue....EVER!!!
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My understanding, loading and unloading is what wears them out. While sitting unloaded is best, it is only a slight concern.
I see where many have commented that it is the cyclical loading and unloading of spring tension that causes damage to pistol magazines, or at least shortens their effective life. To this, I will reply with an answer that I saw on another website. The springs which open the valves in your vehicle's engine are being constantly compressed and uncompressed. While not the exact example used, it went something like this: Suppose you are driving along at a speed requiring 2 thousand rpms. That would mean that each of your valve springs are being compressed and uncompressed 2 thousand times every minute, or 120 thousand times every hour. Let's say you drive that car for 100K miles,....depending on the vehicle you drive, the number of spring cycles must be somewhere way up there in the trillions of times.
But being a natural worrier about everything, I too wondered about leaving my Glock mags fully loaded with 15 rounds. At the present, both are fully loaded. Since it costs a lot to shoot a 40 S&W, and hurts my hands too, I only carry the two mags when I go to the range. I appreciate the advice given here already, and feel much better about leaving them maxed up.
I've had my G19 with the same 3 mags since '93 or '94. When not in use, they're fully loaded all of the time. Always worked reliably.
This is somewhat related, but concerning AR15 mags. The failure point for these is not the spring under tension, but the feed lips. By using the Magpul dust covers, the tension of a fully loaded Pmag 30 is kept off the lips.
I leave mine loaded all day every day. You hurt your mags by constantly loading and unloading the springs. Not keeping it loaded.
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I have 25 G-19 mags that I use for Training/Gunfighting Courses. In the bottom of my bag I have a couple that have now been loaded for 4-5 years. I am building a new home and will be documenting everything I have including mags for guns and their current status before the move. My carry mags have all been loaded for 3 years as I do not rotate them. They are loaded with the original batch of Winchester Ranger T that I tested the gun with in one of my first Gun Fighting courses. You run 350-500 rounds thru mixed mags over 2 days and all perform flawlessly that is good enough for me. They all have a metal mag floorplate with my name and number on them. Easy to track. I also have a ton of mags for my other Glocks including 4 of the 33 Round "Hotel Specials". Those go with my on trips out of town and into the gun in the hotel room. Yes, I bought well before 2008 for "Social Ammo" and have bought over the years for reloading supplies. I do not have to go looking for anything right now or in the near future.
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why is it always the people with one post that resurrect the 4 year old threads? How do they even find them? Make it stop!!!
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I leave all of my magazines loaded and empty magazine is a useless magazine
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Your points are shallow... my points are Hollow....
Time's up. I think we can all agree it's the compressing/un-compressing that cases spring wear, right? So what difference is it whether someone compresses the spring immediately after shooting it empty, or before use (or whenever)? It's still one compression. This leave it full or empty debate is pointless in regards to spring wear. The owner can do whatever he/she likes--you're still exerting the same wear. Leaving them empty, however, will help to avoid spring set--whether that's a factor in spring life span or not.
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I've got Glock mags that have stayed loaded in excess of a year. I suspect some have been loaded as long as two years. Those I put in a gun eventually have all functioned normally and without hiccups.
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