PMAGS tested in cold conditions
TaylorWSO @ ar15.com dropped a loaded Magpul polymer PMAGS onto concrete in -30 degrees, feed lip first:
So to the drop test. I wanted to see what they could do in the cold. I dropped it from the same table (3′ high) I have dropped metal mags from on the range. If you drop a metal mag on concrete from the same height it will damage the feed lips as to be unuseable-but you can bend them back. I was planning on dropping them on all sides but it broke before I could try it. From the table, fully loaded, no cover, both feed lips shattered when they hit the concrete. I expected it to break/crack but these things shot off and rounds went everywhere. I stopped the test right there as didn’t want to try it with any others on the other sides. You can see in the AK HTF that if empty they do fine in the cold.
So what does this mean.
IF you drop ANY mag loaded on the feed lips it will be useless. The Pmags might survive during the summer but all metal mags will bent hot/or cold. The metal mags can be bent back.
The plastic shatters when cold (duh) it doesn’t just crack.
I finally got a answer as to what these can do.
This test was dropping on concrete in cold weather. I had to clean off a spot to get down to the concrete. If the mags are dropped in the snow vs just concrete they do just fine. So the possibility of hitting on the feed lips in cold weather on a hard surface-very unlikely
The covers are great to keep out the snow - huge plus.
Overall they do just fine. I was surprised at the complete breaking vs. cracking buts that’s what cold can do.
The result: cracked/split feed lips:
uafgrad tried a simular experiment in even colder weather:
Ok Back to tougher in Alaska
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Here is where it set for a period of about 18 hours. This was the “hi” temp for the period
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The mag was fully loaded and dropped from a height of 36″ directly onto the feedlips (as previously requested) striking bare concrete.Once it hit the ground, all but 6 of the rounds exited the magazine on to the ground.
Some plastics becomes become brittle in cold conditions, so this is not surprising. The good news is that Magpul are not sitting on their laurels. Their latest version of the PMAG can survive a drop from 5 feet onto concrete feed lip first, fully loaded in -30 F. See this video shot with a high speed camera:
A big thanks to Jay for the link.
You have to admit Magpul understand the internet and AR15.com. Their damage control team is second to none. They never mentioned how long it was store at -30F nor did the video show the height of the magazine being dropped. Until independent testers do their own tests take it as a grain of salt.
It is always fun to see fanboys going their way to defended favorite product. It’s also fun to see fanboys from another completing product declaring their favorite product is better.
Don’t get me wrong I own over 10 30 rounds magpul mag and 10 of their 20 rounds version. I have around 40 GI magazine (30 and 20 rounders) and 10 L5 lancer (30 rounds).
I don’t have a problem with Magpul’s mags breaking up at those temperatures. It was expected because plastic become brittle in extreme cold and I treat all magazines as disposable items. What I have a problem is when people tries to hype a product that has known limitations.
Remember that plastic start deteriorating at the get go. The more it is exposed to the environment (UV) the faster it will deteriorate.
BTW don’t think about buying those $50 HK mags. Save your money because at those prices you expected more from it.
http://hkpro.com/forum/showthread.php?t=91413&page=2
http://www.ar15.com/forums/topic.html?b=3&f=17&t=401646
Here is another thread on Pmag and cold:
http://www.ar15.com/forums/topic.html?b=3&f=17&t=416124
Lancer L5 testing:
http://www.ar15.com/forums/topic.html?b=3&f=17&t=409288
Off topic: The Smoking Bank Robber. Look like it came out of a movie.
http://www.ar15.com/forums/topic.html?b=1&f=5&t=811123&page=1
yes they do understand neo-marketing. You cannot believe how backward some of PR firms for firearm manufactures are. I was recently told by one PR firm, after requesting some info, that because I was not a “writer” they would give me access to press releases.
Bakelite magazines take the cold. I believe they are thermoldplastics? I know they are not metal, but I do not know what plastic they are made out of specifically. I would not make a statement saying plastics cannot handle x, y, or z. MagPul PMAGs may not stand up to it to well, but then again a PMAG is not a Soviet/Russian Bakelite, which is one of the reasons some AK fans do not think MagPul will ever make AK-47/74 magazines.
I’m pretty sure if I were to drop a steel AK mag feedlips first onto the ground it’d be just fine, might damage the concrete though.