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Posted: 2/16/2020 2:05:35 AM EDT
[#1]
No.
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Posted: 2/16/2020 2:14:00 AM EDT
[#2]
Don't overthink it
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Posted: 2/16/2020 5:03:34 AM EDT
[#3]
Saw a post on one of the Facebook groups I am in last week I think where someone have a 40 round Pmag loaded in a rifle for 2.5 years develop a crack at the feed lips. USGI and Lancer mags don’t seem to have this problem.
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Posted: 2/16/2020 9:10:57 AM EDT
[#4]
Quote HistoryQuoted:
Saw a post on one of the Facebook groups I am in last week I think where someone have a 40 round Pmag loaded in a rifle for 2.5 years develop a crack at the feed lips. USGI and Lancer mags don’t seem to have this problem. ETA- I have a range bag full of gen2, gen3 and even original PMAGS (from ‘07???) that I use on a monthly (sometimes weekly) basis. Hundreds of cycles of loading, sitting, shooting and dropping. I have yet to wear one out or had any problem with feed lips spreading. Again, anecdotal, YMMV. Yes, the PMAG dust cover does relieve the pressure of the loaded rounds on the feed lips, by design. If you think that is an important feature, buy the gen3 as it comes with the dust cover. OP- forget about “clamps” that is just going to create problems you never had before. What if the clamp pressure bends the feed lips? (for example). |
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Posted: 2/16/2020 11:07:32 AM EDT
[#5]
About half of those Pmag covers pop off in storage anyway.
40 mag Pmags crack. That's a fact of life around the competition crowd. |
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Posted: 2/16/2020 11:37:48 AM EDT
[#6]
Quote HistoryQuoted:
No. |
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Posted: 2/16/2020 12:42:11 PM EDT
[#7]
Quote HistoryQuoted:
About half of those Pmag covers pop off in storage anyway. 40 mag Pmags crack. That's a fact of life around the competition crowd. |
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Posted: 2/16/2020 3:59:04 PM EDT
[#8]
Quote HistoryQuoted:
How long does it take for issues to appear? Quote HistoryQuoted:
Quoted:
About half of those Pmag covers pop off in storage anyway. 40 mag Pmags crack. That's a fact of life around the competition crowd. They most all have extensions and hit the ground pretty hard. |
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Posted: 2/16/2020 4:05:33 PM EDT
[#9]
Quote HistoryQuoted: Not doubting you but “my friend’s, ex-girlfriend’s, brother’s, best friend....” anecdotes are not really conclusive one way or the other. ETA- I have a range bag full of gen2, gen3 and even original PMAGS (from ‘07???) that I use on a monthly (sometimes weekly) basis. Hundreds of cycles of loading, sitting, shooting and dropping. I have yet to wear one out or had any problem with feed lips spreading. Again, anecdotal, YMMV. Yes, the PMAG dust cover does relieve the pressure of the loaded rounds on the feed lips, by design. If you think that is an important feature, buy the gen3 as it comes with the dust cover. OP- forget about “clamps” that is just going to create problems you never had before. What if the clamp pressure bends the feed lips? (for example). |
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Posted: 2/16/2020 4:06:12 PM EDT
[#10]
Quote HistoryQuoted:
About half of those Pmag covers pop off in storage anyway. 40 mag Pmags crack. That's a fact of life around the competition crowd. |
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Posted: 2/16/2020 4:35:54 PM EDT
[#11]
Quote HistoryQuoted:
The 40 round pmags must not be as durable as the 30 round I take it? Quote HistoryQuoted:
Quoted:
About half of those Pmag covers pop off in storage anyway. 40 mag Pmags crack. That's a fact of life around the competition crowd. |
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Posted: 2/16/2020 9:13:42 PM EDT
[#12]
Quote HistoryQuoted:
Saw a post on one of the Facebook groups I am in last week I think where someone have a 40 round Pmag loaded in a rifle for 2.5 years develop a crack at the feed lips. USGI and Lancer mags don’t seem to have this problem. |
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Posted: 2/16/2020 9:14:48 PM EDT
[#13]
Quote HistoryQuoted:...Yes, the PMAG dust cover does relieve the pressure of the loaded rounds on the feed lips, by design. If you think that is an important feature, buy the gen3 as it comes with the dust cover.
OP- forget about “clamps” that is just going to create problems you never had before. What if the clamp pressure bends the feed lips? (for example). |
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Posted: 2/16/2020 9:17:32 PM EDT
[#14]
Quote HistoryQuoted:
About half of those Pmag covers pop off in storage anyway. 40 mag Pmags crack. That's a fact of life around the competition crowd. If the covers pop off in storage on the 40 round mags, or even the 30 round ones, maybe the answer is to download them by 10%. |
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Posted: 2/16/2020 9:29:23 PM EDT
[#15]
Ive got M2 Pmags that have been stored loaded for 5-7 years w/o covers. No issues.
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Posted: 2/16/2020 9:40:44 PM EDT
[#16]
Quote HistoryQuoted:
Ive got M2 Pmags that have been stored loaded for 5-7 years w/o covers. No issues. |
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Posted: 2/16/2020 9:54:11 PM EDT
[#17]
Quote HistoryQuoted:
Pop off in storage on the 30 round mags as well? If the covers pop off in storage on the 40 round mags, or even the 30 round ones, maybe the answer is to download them by 10%. Quote HistoryQuoted:
Quoted:
About half of those Pmag covers pop off in storage anyway. 40 mag Pmags crack. That's a fact of life around the competition crowd. If the covers pop off in storage on the 40 round mags, or even the 30 round ones, maybe the answer is to download them by 10%. Has been my experience with those things since the RevM. |
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Posted: 2/16/2020 10:13:25 PM EDT
[#18]
Quote HistoryQuoted:
About 3 weeks back, I opened 5 brand new Gen M3s and loaded them, snapped the covers in. Left for a week, came back, two covers popped loose. Has been my experience with those things since the RevM. Quote HistoryQuoted:
Quoted:
Quoted:
About half of those Pmag covers pop off in storage anyway. 40 mag Pmags crack. That's a fact of life around the competition crowd. If the covers pop off in storage on the 40 round mags, or even the 30 round ones, maybe the answer is to download them by 10%. Has been my experience with those things since the RevM. I vaguely remember skimming over a shootout type review of a few magazines, including the M3s and M2s in the same review. Either the M2s won or the reviewers preferred them to the M3s. |
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Posted: 2/17/2020 2:50:23 AM EDT
[#19]
I had roughly 10 magazines... usgi loaded in my safe for over 10 years.
I shot 5 magazines this summer no issue whatsoever. |
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Posted: 2/17/2020 6:47:34 AM EDT
[#20]
Quote HistoryQuoted:
Ive got M2 Pmags that have been stored loaded for 5-7 years w/o covers. No issues. |
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Posted: 2/17/2020 7:47:48 AM EDT
[#21]
I keep around six mags loaded for the AR for bump in the night stuff. All of them are aluminum or steel. Not that I don't trust the PMAGs, but for close encounters of the wrong kind, I want to be sure.
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