Magpul deformation problem?

[.455_Hunter]

Not surprisingly, I have been able to find some time in the house to reorganize some of my shooting stuff. I had one 30 rd normal Magpul magazine that had been stored at full capacity without the dust cover for several years. I found the misplaced dust cover this morning and tried to snap it on. Nope- The hook will not engage.

What's the deal? I thought these things were good to go for long-term storage regardless of the dust cover taking the load off the lip area.

Thoughts?

[battlemidget]

if you unload the mag, same result?

[.455_Hunter]

if you unload the mag, same result?

Yes. To be fair, I will check both the mag and the dust cover on different units to see if I can isolate the problem child.

[.455_Hunter]

Well, the dust cover seems to be the issue...

It says "336-9917" with an "8" and an "05", which I would assume to be Aug 2005 manufacture.

Are there generational fitment issues? The mags it doesn't fit are 2008 and 2012 production.

[battlemidget]

Good find! Might be a good question for Magpul customer service.

[Great-Kazoo]

Not surprisingly, I have been able to find some time in the house to reorganize some of my shooting stuff. I had one 30 rd normal Magpul magazine that had been stored at full capacity without the dust cover for several years. I found the misplaced dust cover this morning and tried to snap it on. Nope- The hook will not engage.

What's the deal? I thought these things were good to go for long-term storage regardless of the dust cover taking the load off the lip area.

Thoughts?

Well i finally hit the range last aug for some serious trigger time. 1 year after relocating, with mp's that i had loaded up say in mid 18. Might as well burn up old inventory, not one of the 5 run functioned, w/out FTF's . The usgi ones, cycled fine.

[kwando]

I thought they had different gen dust covers. Is it possible you found the wrong gen?

[Gman]

Well i finally hit the range last aug for some serious trigger time. 1 year after relocating, with mp's that i had loaded up say in mid 18. Might as well burn up old inventory, not one of the 5 run functioned, w/out FTF's . The usgi ones, cycled fine.

That?s good to know. I?ve never had a single issue with the D&H mags I?ve been using since I bought my first AR-15. I did buy some Magpuls since that?s what all the cool kids were doing.

[crays]

Well i finally hit the range last aug for some serious trigger time. 1 year after relocating, with mp's that i had loaded up say in mid 18. Might as well burn up old inventory, not one of the 5 run functioned, w/out FTF's . The usgi ones, cycled fine.

Did you reload them and test function again to see if they are totally shot?

[battlemidget]

I'm not a fan of magpul/plastic mags because when they're stacked in a pouch, they lego together when you attempt a fast withdrawl. I think they're fine for competition use, and yeah I wouldn't leave them loaded. If I had no choice but to leave a plastic mag loaded, I'd spare a round or 2.

[XC700116]

Yes, There is a generational difference with the Magpul dust covers/Mags, I have some of the old covers and they won't fit the newer mags. Pretty sure the newer covers will however fit the older mags. Not sure yet.

[battlemidget]

Well i finally hit the range last aug for some serious trigger time. 1 year after relocating, with mp's that i had loaded up say in mid 18. Might as well burn up old inventory, not one of the 5 run functioned, w/out FTF's . The usgi ones, cycled fine.

Call magpul's customer service line, they're known to replace defective mags straight away, or at least they used to.

[thedave1164]

I like their ranger pulls, and have had good luck so far with their AICS type 10rd mags, but I have never trusted the 30rd mags, USGI all the way with magpul followers of course

[beast556]

All the magpul mags I have left loaded for any length of time I have had problems with. I still have a few magpul mags but they are for range use only. Last year I fired 12 assorted usgi mags that were loaded for 15 plus years, all fired with out issue. I have another set of 12 mags that were loaded at the same time that I will shoot in the next 5-10 years to see how they do. A few months back I fired off 6 ak mags that had been loaded for 10 years not one issue with any of them.

[Great-Kazoo]

Call magpul's customer service line, they're known to replace defective mags straight away, or at least they used to.

2 weeks later for a reply ;) Not really an issue for me I put them on the table at our garage sales. With a big USED sign on them.

[battlemidget]

2 weeks later for a reply ;) Not really an issue for me I put them on the table at our garage sales. With a big USED sign on them.

That's disheartening. Maybe they got the flu, the magpu flu.

[bellavite1]

Tested a random Pmag from my 2013 stash (yes, it has been loaded since), no issues...

[.455_Hunter]

Tested a random Pmag from my 2013 stash (yes, it has been loaded since), no issues...

Stored with or without dust cover?

[bellavite1]

With

[Great-Kazoo]

Tested a random Pmag from my 2013 stash (yes, it has been loaded since), no issues...

13? kinda new ;) Either way the mags i had loaded failed to function as required. Thankfully it was a range day, not the upcoming C-19 Purgeathon

[normandinpatriot]

I have kept some PMAGS loaded in truck all summer. I live in New Hampshire. Temps have hit near 100 this summer and are in the -20+range on my way to work in the winter... none of these mags had issues. I have some metal USGI mags from BCM. I feel much better about storing these loaded than plastic mags. Still... I have had Pmags loaded for 2+ years subjected 100+ degree temp swings without issues....

[BPTactical]

You aint gonna hurt the Pmags

[Not_A_Llama]

Posted a week ago: https://youtu.be/ILy6HNbsUU8