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Posted: 9/2/2017 12:21:08 AM EDT
[#1]
No.
Just get some Lancers in a color that will be used for 300 BLK only and call it a day. 
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Posted: 9/2/2017 7:12:10 AM EDT
[#2]
FPNI
I bought some on preorder but there's not enough difference from regular black PMAGs to be worth it. Some people have issues loading PMAGs (I never have) so Lancers are recommended. |
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Posted: 9/2/2017 5:32:56 PM EDT
[#3]
Quote HistoryQuoted:
No. Just get some Lancers in a color that will be used for 300 BLK only and call it a day. 
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Posted: 9/3/2017 1:49:23 AM EDT
[#4]
Quote HistoryQuoted:
The new Lancer 300BLK mags ? |
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Posted: 9/4/2017 3:03:54 PM EDT
[#5]
The only issue I have is it is very hard to insert a mag on a closed bolt. Do the .300 PMags help with that? I use Lancers, but I'd try Pmags
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Posted: 9/4/2017 8:20:38 PM EDT
[#6]
MSRP is only $1 more than the M3 5.56 mag. If you are buying mags for a new 300blk build might as well.
They have different followers marked "300", have the inside ribs a bit further back, and are marked 7.62x35 on the outside. |
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Posted: 9/6/2017 8:15:23 PM EDT
[#7]
 Attached File Attached File Attached FileInitial impressions the quality of the M3 Pmag is definitely there. Drops free empty and loaded and seats easily on closed bolt with a full 30. No binding etc when loading. The cosmetic difference is enough to help differentiate assuming you're familiar with 5.56 Pmags. If they work properly I'll buy a few more for sure. I really want some 20 rounders though. |
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Posted: 9/12/2017 7:34:42 AM EDT
[#8]
Quote HistoryQuoted:
https://www.AR15.Com/media/mediaFiles/425939/20170906_170854-300759.JPG https://www.AR15.Com/media/mediaFiles/425939/20170906_170842-300761.JPG https://www.AR15.Com/media/mediaFiles/425939/20170906_170828-300762.JPG Initial impressions the quality of the M3 Pmag is definitely there. Drops free empty and loaded and seats easily on closed bolt with a full 30. No binding etc when loading. The cosmetic difference is enough to help differentiate assuming you're familiar with 5.56 Pmags. If they work properly I'll buy a few more for sure. I really want some 20 rounders though. |
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Posted: 9/12/2017 8:28:56 AM EDT
[#9]
Other than markings, is there any other significant difference than a m2 or m3 5.56 mag?
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Posted: 9/13/2017 9:43:51 PM EDT
[#10]
Wasn't the 300BLK purpose built to use ALL of standard ar15 parts, minus the barrel?
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Posted: 9/14/2017 7:17:39 PM EDT
[#11]
Quote HistoryQuoted:
Wasn't the 300BLK purpose built to use ALL of standard ar15 parts, minus the barrel? It's when you get so many possibilities of loadings and bullet depths some have issues. Personally I feel as if I should be able to fill a mag with 30 different loads and still have zero issues, and I'm doing fine with 20rd G3 just fine. Ok....20 different loads ?? |
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