AR Sponsor
Posted: 2/21/2013 2:17:17 PM EDT
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just got a dozen p-mags from brownells. 30 rounders but they came with no dust covers. they are second gen, flared bottom. i have looked but can't find a current thread or older one for that matter on if the the covers are needed for anything other than "dust" .
i think i read a year ago that when left fully loaded you should have the cover to prevent spreading of the feed lips, (like i should have done with my X wife)? question is, can i load these to 30 and leave loaded for extended time without the covers or only in the weapon. thank you and good luck! . |
| No dust covers? They say to keep the covers on if storing loaded to prevent feed lip deformation. If you need to have them loaded do what you have to do, but I say do not leave them loaded. Keeping a loaded one in the weapon may or may not adequately support the feed lips, I do not know about that one. I have seen some covers online for around 25 dollar for ten, maybe cheaper if you look. |
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Fairly certain I have read in a Magpul statement that the covers were for dust only and not needed to stop feed lip seperation.
Looking for the quote now......... ETA: from Magpul's website: Supplemental Impact/Dust Covers for the 5.56x45 PMAG 30 AR/M4 GEN M2 MOE, PMAG 20, and EMAG™, designed to minimize debris intrusion and protect against potential cartridge damage during storage and transit. |
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No dust covers? They say to keep the covers on if storing loaded to prevent feed lip deformation. If you need to have them loaded do what you have to do, but I say do not leave them loaded. Keeping a loaded one in the weapon may or may not adequately support the feed lips, I do not know about that one. I have seen some covers online for around 25 dollar for ten, maybe cheaper if you look. The Impact/Dust Covers are not needed to prevent the feedlips from spreading. They are a value-added accessory to keep dirt and junk out of the mag and to protect the top round during storage and transit. We've had PMAGs fully loaded with no cover on for many years now and have observed no feedlip creep. |
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No dust covers? They say to keep the covers on if storing loaded to prevent feed lip deformation. If you need to have them loaded do what you have to do, but I say do not leave them loaded. Keeping a loaded one in the weapon may or may not adequately support the feed lips, I do not know about that one. I have seen some covers online for around 25 dollar for ten, maybe cheaper if you look. The Impact/Dust Covers are not needed to prevent the feedlips from spreading. They are a value-added accessory to keep dirt and junk out of the mag and to protect the top round during storage and transit. We've had PMAGs fully loaded with no cover on for many years now and have observed no feedlip creep. Not to pick a fight and my memory may be off (and I'm a big fan of PMAG's for that matter), but I thought the pmag has only existed for 6 or 7 years now..? |
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No dust covers? They say to keep the covers on if storing loaded to prevent feed lip deformation. If you need to have them loaded do what you have to do, but I say do not leave them loaded. Keeping a loaded one in the weapon may or may not adequately support the feed lips, I do not know about that one. I have seen some covers online for around 25 dollar for ten, maybe cheaper if you look. The Impact/Dust Covers are not needed to prevent the feedlips from spreading. They are a value-added accessory to keep dirt and junk out of the mag and to protect the top round during storage and transit. We've had PMAGs fully loaded with no cover on for many years now and have observed no feedlip creep. Not to pick a fight and my memory may be off (and I'm a big fan of PMAG's for that matter), but I thought the pmag has only existed for 6 or 7 years now..? Sounds like many years to me. |
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No dust covers? They say to keep the covers on if storing loaded to prevent feed lip deformation. If you need to have them loaded do what you have to do, but I say do not leave them loaded. Keeping a loaded one in the weapon may or may not adequately support the feed lips, I do not know about that one. I have seen some covers online for around 25 dollar for ten, maybe cheaper if you look. The Impact/Dust Covers are not needed to prevent the feedlips from spreading. They are a value-added accessory to keep dirt and junk out of the mag and to protect the top round during storage and transit. We've had PMAGs fully loaded with no cover on for many years now and have observed no feedlip creep. Not to pick a fight and my memory may be off (and I'm a big fan of PMAG's for that matter), but I thought the pmag has only existed for 6 or 7 years now..? Sounds like many years to me.  Fair enough. I guess it depends on your frame of reference. Most anything gun-related or tool-related, I tend to think of 6-7 years as closer to 'new' myself. No slight meant to pmag's at all - as I said, I'm a fan.
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No dust covers? They say to keep the covers on if storing loaded to prevent feed lip deformation. If you need to have them loaded do what you have to do, but I say do not leave them loaded. Keeping a loaded one in the weapon may or may not adequately support the feed lips, I do not know about that one. I have seen some covers online for around 25 dollar for ten, maybe cheaper if you look. The Impact/Dust Covers are not needed to prevent the feedlips from spreading. They are a value-added accessory to keep dirt and junk out of the mag and to protect the top round during storage and transit. We've had PMAGs fully loaded with no cover on for many years now and have observed no feedlip creep. Not to pick a fight and my memory may be off (and I'm a big fan of PMAG's for that matter), but I thought the pmag has only existed for 6 or 7 years now..? Sounds like many years to me. Fair enough. I guess it depends on your frame of reference. Most anything gun-related or tool-related, I tend to think of 6-7 years as closer to 'new' myself. No slight meant to pmag's at all - as I said, I'm a fan.The media also likes to spin AR's as "Modern Firearms." Can you think of anything that was designed in the 1950's that we still consider to be modern? |
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No dust covers? They say to keep the covers on if storing loaded to prevent feed lip deformation. If you need to have them loaded do what you have to do, but I say do not leave them loaded. Keeping a loaded one in the weapon may or may not adequately support the feed lips, I do not know about that one. I have seen some covers online for around 25 dollar for ten, maybe cheaper if you look. The Impact/Dust Covers are not needed to prevent the feedlips from spreading. They are a value-added accessory to keep dirt and junk out of the mag and to protect the top round during storage and transit. We've had PMAGs fully loaded with no cover on for many years now and have observed no feedlip creep. Not to pick a fight and my memory may be off (and I'm a big fan of PMAG's for that matter), but I thought the pmag has only existed for 6 or 7 years now..? Sounds like many years to me. Fair enough. I guess it depends on your frame of reference. Most anything gun-related or tool-related, I tend to think of 6-7 years as closer to 'new' myself. No slight meant to pmag's at all - as I said, I'm a fan.The media also likes to spin AR's as "Modern Firearms." Can you think of anything that was designed in the 1950's that we still consider to be modern? Impossible. I was recently informed that events as recent as 2007 were "many years" ago... 
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| Well I gotta say that this thread went down a path I never expected... The dust cover question always comes up every few months, weeks aferthe last one went to archive. And those threads always get pretty heated up about dustcovers, loaded or unloaded pmags, spreading feedlips, cracked feedlips. etc. All kinda pointless because you might as well get yur own PMags anyway and try it yerself. I believe Juston, because I've had loaded PMags since 2008 or 2009, one with dustcover and one on-off w/o dustocver. Haven't found any differences whatsoever. excellent mag, err PMag. |
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IIRC the covers were supplied to keep the top rounds from putting any pressure on the feed lips, just to assure those who might have been concerned about the plastic cracking over time.
Later evaluation showed that they were not needed as the magazine proved to be hell for stout, use 'em if you've got 'em but not really needed for storage. |
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