Pmag AR mag dust cover

kcult

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Totally worth it or useless doodad?

I have mags with them and mags without. Are they really necessary or useful or are they just a piece of something that probably didn't really need to be there?
 
When I preload mags for a match I’ll use them. Especially when I know it’s gonna be super dusty. Otherwise, no.
 
The best use I’ve found for them was as po-boy mag-pulls on Gen2’s but this doesn’t work on MOE’s as the dust cover can no longer be snapped on the bottom. Even as mag-pulls, they were just “mehhh”.

I recently threw all of mine in my spare parts box.
 
They are suppose to take the pressure off and protect the mag’s feed lips ... does it or doesn’t it ... I don’t know.

That's correct. It pushes the top round down just a bit and stops them from spreading...

Makes a difference on the 40s for sure.
 
Id also be down for a couple if yall are tossing them out/not using them
 
I was assuming they were dust covers. I can't recall where I saw that.

If the intent was to relieve the feed lips, that's fairly smart.
 
They won’t clip on my non-windowed PMags, which I have a bunch of.
 
LOL
But seriously, I thought you bought a boxcar load or something in the last scare.

It was the next to the last bottom. They were giving them away, so I was taking them and selling them for about a dollar more than I paid.

After five cases of 80, the sixth case (mine) was technically free.
 
I have them on all my PMAGs, whether loaded or unloaded. (All non-windowed.) NBD, AFAIC.
 
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I can not get the covers to close on my non-windowed loaded Pmags. The windowed mags? No problemo.
 
I can not get the covers to close on my non-windowed loaded Pmags. The windowed mags? No problemo.
I have squished 31 rounds into a pmag before. With 31 no way that cover would snap on.
Prolly not your issue, just thinking out loud. Maybe drop a round even if it's to 29 and see what happens.
I can't recall if very-first pmags used that clip or not. Are your mags ancient?
 
I just noticed these things are gen specific. I wasn't paying much attention to that.

I had one mag that the cover wouldn't small on. I see the mag is 1st gen, but the two covers I tried wouldn't snap on. Of the four covers laying around on my bench, I saw on the inside that two were M3 and the other two were just M.

I was trying to snap the M3 on the mag, but it wouldn't snap. The M marked cover snapped in place with no problem.

Hmm.
 
I download to 28 and they work fine on both windowed and non window gen2
Good idea. I count rounds so as not to overload them but only a few of my covers work on my PMags that loaded to 30, so maybe downloading is the ticket. Thanks.
 
As stated several times above, made to take pressure off the feed lips when storing loaded magazines. They do work, and are needed if you store fully loaded magazines in locations that experience extreme temps both cold and hot, such as vehicles. I’ve had to replace numerous magazines at work which were stored loaded in vehicles without the cover. They will develop as cracks and/or split on the top rear of the magazine or corners of the feed lips. Have not seen any issues with magazines stored in climate controlled locations, however I developed a habit to use them on all my magazines. YMMV


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I reckon I need to go find them, download my magazines by one round, and put on the cover. I normally download AR mags by one round so they go into a rifle with a closed bolt more easily, so it should not be much of a chore.
 
Boredom and Gun Broker got me.

S1UKjBV.jpg
Is that an oversized case? Or undersized gun? :D

...and is this even the thread you meant to post that in? :p
 
I have them because:

1) They supposedly keep the pressure off the feed lips of the mag, which is great for me because I store all of my mags loaded. I like having mags that work.
2) The Gen3 Pmags all came with dust covers, so me being a sucker for neatness and organization, naturally that meant I needed to get dust covers for my Gen2 Pmags as well.
3) If for some reason the world becomes Mad Max or I move out to the desert, at least the insides of my mags won't be dusty!
4) They were only a couple dollars so I figured why not.
 
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