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Posted: 7/12/2018 9:52:21 AM EDT
[#1]
Quote HistoryQuoted:
Guys with existing 5.56 to 9mm conversions. How necessary is it to change the buffer weight? And if so which weight? Will be firing suppressed as well. I have a 10” 5.56 sbr and been buying parts to finish out my 9mm upper for it. These mags should round everything out nicely. With CMMG's radial delayed blowback, you could keep your standard buffer. The pics of the mag insert doesn't lead me to believe the LRBHO functions, so your bolt catch won't take a beating. |
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Posted: 7/12/2018 9:57:43 AM EDT
[#2]
Quote HistoryQuoted: With CMMG's radial delayed blowback, you could keep your standard buffer. The pics of the mag insert doesn't lead me to believe the LRBHO functions, so your bolt catch won't take a beating. |
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Posted: 7/12/2018 10:16:14 AM EDT
[#3]
Just ordered 2-3 packs, I’ve been waiting for something like this for awhile.
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Posted: 7/12/2018 10:23:44 AM EDT
[#4]
Can anyone test these with a standard 5.56 BCG? I'd like to know if the bolt will clear the feed lips.
I'm interested in using this mag with the CMMG RDB system. |
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Posted: 7/12/2018 12:51:29 PM EDT
[#5]
There I was, minding my own business......now I spent $74 on something I didn't know existed until minutes ago
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Posted: 7/12/2018 1:05:32 PM EDT
[#6]
Quote HistoryQuoted:
I will admit, this peaks my interest. |
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Posted: 7/12/2018 2:07:59 PM EDT
[#7]
Quote HistoryQuoted:
Can anyone test these with a standard 5.56 BCG? I'd like to know if the bolt will clear the feed lips. I'm interested in using this mag with the CMMG RDB system. |
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Posted: 7/12/2018 8:17:57 PM EDT
[#8]
Quote HistoryQuoted:
Can anyone test these with a standard 5.56 BCG? I'd like to know if the bolt will clear the feed lips. I'm interested in using this mag with the CMMG RDB system. |
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Posted: 7/12/2018 9:16:58 PM EDT
[#9]
Ordered 2 3 packs $75 each with shipping
Ordered 6 coyote Pmags from primary arms for $9.99 ea So $210 for 6 mags and no mag block vs $200 for a mag block (my build was going to use a Hahn) + $35 each for metal colt mags = $410 saved $200 |
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Posted: 7/12/2018 9:37:25 PM EDT
[#10]
This makes a lot of sense for people with SBR’s!
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Posted: 7/12/2018 9:39:22 PM EDT
[#11]
It also make alot of sense for people that only have one lower equiped with a Binary trigger. Like me....
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Posted: 7/12/2018 10:32:02 PM EDT
[#12]
Quote HistoryQuoted:
It also make alot of sense for people that only have one lower equiped with a Binary trigger. Like me.... |
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Posted: 7/12/2018 10:39:35 PM EDT
[#13]
Quote HistoryQuoted:
It also make alot of sense for people that only have one lower equiped with a Binary trigger. Like me.... |
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Posted: 7/12/2018 10:41:46 PM EDT
[#14]
It does with my current set up.
Faxon gen 2 Bolt. |
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Posted: 7/12/2018 10:44:27 PM EDT
[#15]
Since I have a CMMG Guard RDB system running full auto reliably from Colt-pattern mags already, this is very interesting, especially for my customers, who expect delivery of a functional system with all tweaking done prior to delivery. Might have to fo on this.
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Posted: 7/13/2018 5:19:10 AM EDT
[#16]
got my pre order paid for. cant wait
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Posted: 7/13/2018 6:39:38 AM EDT
[#17]
Quote HistoryQuoted:
It does with my current set up. Faxon gen 2 Bolt. |
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Posted: 7/13/2018 7:08:43 AM EDT
[#18]
Quote HistoryQuoted:
Can anyone test these with a standard 5.56 BCG? I'd like to know if the bolt will clear the feed lips. I'm interested in using this mag with the CMMG RDB system. |
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Posted: 7/13/2018 8:24:07 AM EDT
[#19]
Quote HistoryQuoted:
I will be testing these with my DI 9mm which uses a standard 223 bolt and will post the findings. |
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Posted: 7/13/2018 8:36:34 AM EDT
[#20]
I too plan on using this with the Guard. The question is what to do about the ejector in the mag.
1. Will the bolt clear the ejector without cutting it off? 2. If it clears, run dual ejectors or maybe remove the one in the bolt?...or remove one on mag? I find that when trying to tune the Guard to run slower (for full auto SMG competition) that the issue is failure to eject. I'm hoping that the bolt will clear the ejector giving the Guard system a wider window of reliability. The second concern I have is how much force is required to strip the rounds from the mag. Colt mags require more force to strip rounds than Glock mags. Hence, I couldn't get my Guard setup using Colt mags to run 100% with the Blitzkrieg/Tubbs spring while it works great with Glock mags. Will just have to wait and see.. |
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Posted: 7/13/2018 9:13:59 AM EDT
[#21]
Quote HistoryQuoted:
I too plan on using this with the Guard. The question is what to do about the ejector in the mag. 1. Will the bolt clear the ejector without cutting it off? 2. If it clears, run dual ejectors or maybe remove the one in the bolt?...or remove one on mag? I find that when trying to tune the Guard to run slower (for full auto SMG competition) that the issue is failure to eject. I'm hoping that the bolt will clear the ejector giving the Guard system a wider window of reliability. The second concern I have is how much force is required to strip the rounds from the mag. Colt mags require more force to strip rounds than Glock mags. Hence, I couldn't get my Guard setup using Colt mags to run 100% with the Blitzkrieg/Tubbs spring while it works great with Glock mags. Will just have to wait and see..
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Posted: 7/13/2018 9:17:11 AM EDT
[#22]
Given that a 9mm blowback bolt, for which this is intended, has a cutout through the breech face for the fixed ejector: -A standard AR15 bolt/carrier will probably not clear the mag ejector and it will have to be removed. -With a Guard bolt, the fixed mag ejector would not do anything to aid in ejection as the ejector would not be allowed to contact the case, due to being captive in the shrouded bolt. |
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Posted: 7/13/2018 9:49:35 AM EDT
[#23]
Quote HistoryQuoted: I will be testing these with my DI 9mm which uses a standard 223 bolt and will post the findings. |
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Posted: 7/13/2018 10:31:51 AM EDT
[#24]
Quote HistoryQuoted:
-With a Guard bolt, the fixed mag ejector would not do anything to aid in ejection as the ejector would not be allowed to contact the case, due to being captive in the shrouded bolt. |
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Posted: 7/13/2018 10:36:51 AM EDT
[#25]
Quote HistoryQuoted:
Do you know that for sure? Did you know that CMMG changed the geometry of the bottom two lugs from a 556 bolt? They are closer together to clear the opening of a Glock mag. The pistol caliber fixed ejector works by striking the head of the case as the bolt travels rearward, and it rides in the slot in the bolt shown above. On a standard AR bolt or CMMG Guard bolt, the case head is fully captive, surrounded by the bolt skirt and lugs. The fixed ejector would be all up in the middle of two pieces of steel (bolt and carrier) that are not clearanced for it. Until you mill out a big chunk of the bolt to match the breech face profile of a 9mm blowback bolt, the fixed ejector will not do anything but jam it all up. So, you might as well ditch the fixed ejector if you're going to try to run it with a Guard bolt. ETA: Here's an overlay I just made showing the portion of the AR bolt that would interfere with any kind of fixed ejector.  Attached File |
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Posted: 7/13/2018 11:00:34 AM EDT
[#26]
Quote HistoryQuoted:
1) Not quite obsolete. I can use my Glock and my AR-9 and swap the mags back and forth all I want. 2) This pretty much already is a $50 product by the time you add in a $10 magazine and shipping and tax and whatever else. 3) This product requires you have dedicated 9mm mags that wont run in any other gun you own. Very large 9mm mags. Maybe the bulkiest 9mm mags ever. And they can't be used in any other gun you have with you. 4) The amount you save depends on how many mags you feel like you need per gun and how many glock mags you already owned. Some guys want 10 magazines for every gun, minimum. If you count the cost of the donor PMAGs, by the time you buy about 4 of the MEAN adapters, it would have been cheaper to buy a dedicated lower and use your existing glock mags. 5) I have drum mags for my large and small frame glock lowers. 30 rounds is cute. Real men have 40 and 50 round drums. Quote HistoryQuoted:
Quoted:
So if this product actually works as I'm reading it, it will make the need for a block or dedicated 9mm lower obsolete? If that is the case and it works well then even if it were a $50 magazine product, it will save you much more over buying a dedicated complete 9mm lower right? 2) This pretty much already is a $50 product by the time you add in a $10 magazine and shipping and tax and whatever else. 3) This product requires you have dedicated 9mm mags that wont run in any other gun you own. Very large 9mm mags. Maybe the bulkiest 9mm mags ever. And they can't be used in any other gun you have with you. 4) The amount you save depends on how many mags you feel like you need per gun and how many glock mags you already owned. Some guys want 10 magazines for every gun, minimum. If you count the cost of the donor PMAGs, by the time you buy about 4 of the MEAN adapters, it would have been cheaper to buy a dedicated lower and use your existing glock mags. 5) I have drum mags for my large and small frame glock lowers. 30 rounds is cute. Real men have 40 and 50 round drums. The point is to use really cheap ammo in mags that are the same size as 5.56 and lets you train with cheap ammo. |
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Posted: 7/13/2018 11:12:13 AM EDT
[#27]
Quote HistoryQuoted:
Everything you said has nothing to do with why they made this product. The point is to use really cheap ammo in mags that are the same size as 5.56 and lets you train with cheap ammo. |
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Posted: 7/13/2018 11:45:13 AM EDT
[#28]
Quote HistoryQuoted:
Franklin Armory or Fostech? Quote HistoryQuoted:
Quoted:
It does with my current set up. Faxon gen 2 Bolt. |
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Posted: 7/13/2018 11:52:45 AM EDT
[#29]
Quote HistoryQuoted:
So, you might as well ditch the fixed ejector if you're going to try to run it with a Guard bolt. ETA: Here's an overlay I just made showing the portion of the AR bolt that would interfere with any kind of fixed ejector. https://www.AR15.Com/media/mediaFiles/173511/BF-606197.JPG |
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Posted: 7/13/2018 11:56:35 AM EDT
[#30]
Quote HistoryFor giggles I tried a promo code randomly, it worked 
Promo code: FREESHIP  Attached File |
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Posted: 7/13/2018 12:00:35 PM EDT
[#31]
Quote HistoryQuoted:
For giggles I tried a promo code randomly, it worked
Promo code: FREESHIP https://www.AR15.Com/media/mediaFiles/452963/Screenshot_20180713-115543-606243.JPG Quote HistoryQuoted:
Promo code: FREESHIP https://www.AR15.Com/media/mediaFiles/452963/Screenshot_20180713-115543-606243.JPG 
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Posted: 7/13/2018 12:13:17 PM EDT
[#32]
Quote HistoryQuoted:
For giggles I tried a promo code randomly, it worked
Promo code: FREESHIP https://www.AR15.Com/media/mediaFiles/452963/Screenshot_20180713-115543-606243.JPG |
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Posted: 7/13/2018 1:02:31 PM EDT
[#33]
Quote HistoryQuoted: Wish I would have known that yesterday. |
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Posted: 7/13/2018 1:41:08 PM EDT
[#34]
Quote HistoryQuoted:
Wish I would have known that yesterday. Quote HistoryQuoted:
Quoted:
For giggles I tried a promo code randomly, it worked
Promo code: FREESHIP https://www.AR15.Com/media/mediaFiles/452963/Screenshot_20180713-115543-606243.JPG 
If it makes you feel any better I got on my first try. 
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Posted: 7/13/2018 7:11:26 PM EDT
[#35]
Quote HistoryQuoted:
If it makes you feel any better I got on my first try. |
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Posted: 7/13/2018 8:04:41 PM EDT
[#36]
Quote HistoryQuoted:
Franklin Armory Quote HistoryQuoted:
Quoted:
Quoted:
It does with my current set up. Faxon gen 2 Bolt. |
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Posted: 7/13/2018 8:24:01 PM EDT
[#37]
Wish I had the code this morning. Put an order in for (3) 3 packs, and did a search for codes but came up blank.
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Posted: 7/14/2018 11:11:19 AM EDT
[#38]
Quote HistoryQuoted:
Guys with existing 5.56 to 9mm conversions. How necessary is it to change the buffer weight? And if so which weight? Will be firing suppressed as well. I have a 10” 5.56 sbr and been buying parts to finish out my 9mm upper for it. These mags should round everything out nicely. |
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Posted: 7/14/2018 11:19:04 AM EDT
[#39]
Quote HistoryQuoted:
My answer is “it depends.” If you’re running light loads,like Winchester’s 115 grain White Box stuff, a standard carbine buffer runs fine. Hotter loads require heavier buffers to keep things running smoothly. Quote HistoryQuoted:
Quoted:
Guys with existing 5.56 to 9mm conversions. How necessary is it to change the buffer weight? And if so which weight? Will be firing suppressed as well. I have a 10” 5.56 sbr and been buying parts to finish out my 9mm upper for it. These mags should round everything out nicely. |
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Posted: 7/14/2018 11:42:17 AM EDT
[#40]
I preordered one. I currently have a ghost colt style magwell adapter and a metalform mag that works well. I'll let you know how this works out.
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Posted: 7/14/2018 8:17:56 PM EDT
[#41]
Quote HistoryQuoted: I'll add to this. If you are running subs with a suppressor you want to delay extraction as long as possible to reduce port noise. That requires the heaviest buffer that will run the gun reliably. My 9mm upper for my 5.56 sbr will be 4.5” with a suppressor 100% of the time. |
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Posted: 7/14/2018 9:27:52 PM EDT
[#42]
Quote HistoryQuoted:
Anyone make a heavy tuneable buffer? My 9mm upper for my 5.56 sbr will be 4.5” with a suppressor 100% of the time. Quote HistoryQuoted:
Quoted: I'll add to this. If you are running subs with a suppressor you want to delay extraction as long as possible to reduce port noise. That requires the heaviest buffer that will run the gun reliably. My 9mm upper for my 5.56 sbr will be 4.5” with a suppressor 100% of the time. |
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Posted: 7/14/2018 9:33:02 PM EDT
[#43]
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Posted: 7/15/2018 2:52:53 PM EDT
[#44]
Now who has the cheapest pmags?
These will work in gen 2 or 3 pmags right?
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Posted: 7/15/2018 7:10:02 PM EDT
[#45]
Here ya go:
$189 for a Vortex Strikefire II and 10 gen2 pmags. The Strikefire II is usually $180 alone. https://palmettostatearmory.com/vortex-strikefire-ii-red-dot-optic-ten-magpul-pmag-5-56-30rd-magazines.html?avad=211021_a1284e4b9&utm_source=Avantlink&utm_medium=Referral&utm_campaign=cl $218.71 for a Vortex Sparc and 10 gen2 pmags. https://www.kygunco.com/Product/View?ItemNo=134128 Everyone needs another/extra red dot.
Edit for bad link. |
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Posted: 7/15/2018 8:55:07 PM EDT
[#46]
Quote HistoryQuoted: How did you get 9x19mm to fit on a standard .223 bolt? How often do you have to clean the bolt carrier? You having to clean the gas tube as well? If I run factory ammo it takes about 100-150 rounds and the carbon buildup has to be cleaned off the bolt tail (but that depends on the ammo I have had some import ammo that only took about 30-40 rounds to force bolt cleaning). The gas tube seems to be fine I currently have several thousand rounds thru my 10.5" most ammo has been handloads and have not needed to clean the gas tube, although I have run some wires in it to see if there is any buildup and it seems to be clear of buildup. When using handloads I use powders that burn cleaner then factory ammo and can go longer between bolt cleaning usually about 400 rounds or so. |
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Posted: 7/15/2018 8:57:33 PM EDT
[#47]
Quote HistoryQuoted:
9mm wont fit in a 223 bolt. You have to open the bolt face up. A 5.45x39 bolt works perfectly for 9mm.
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Posted: 7/15/2018 10:50:57 PM EDT
[#48]
Quote HistoryQuoted:
Guys with existing 5.56 to 9mm conversions. How necessary is it to change the buffer weight? My SBR as a swap top lower for 556 & 9mm,, I have A2 stock assembly (dont like drop stock),, I run A2 buffer with brass dowel inside for 7oz,, 556 & 9mm.. DONT go less than 5oz with 9mm And if so which weight? A2 rifle at 7oz,, both 556 & 9mm, bare muzzle and suppressor Will be firing suppressed as well. See above reply I have a 10” 5.56 sbr and been buying parts to finish out my 9mm upper for it. These mags should round everything out nicely. |
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Posted: 7/16/2018 12:45:58 AM EDT
[#49]
Quote HistoryQuoted:
Somewhere a manufacturer of a mag well adapter is crying. 
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Posted: 7/17/2018 9:59:57 AM EDT
[#50]
Quote HistoryQuoted:
Somewhere a manufacturer of a mag well adapter is crying. MHO, YMMV, etc. |
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