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Posted: 2/10/2017 4:09:53 PM EDT
[#1]
Just buy an H2 buffer, they aren't that expensive.
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Posted: 2/10/2017 4:23:23 PM EDT
[#2]
Quote HistoryQuoted:
Just buy an H2 buffer, they aren't that expensive. Would that help reduce felt recoil? My 10.5 lmt got a pretty good snap to it even with a break on it. |
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Posted: 2/10/2017 8:52:57 PM EDT
[#3]
OP, an over gassed rifle can show pressure signs when pressure is fine bacause the bolt begins to open when chamber pressure is still high.
A heavier buffer treats that symptom some. An adjustable gas block is the fix, or an adjustable bolt carrier group if you don't want to mess with your front sight. JPK |
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Posted: 2/10/2017 9:32:43 PM EDT
[#4]
Quote HistoryQuoted:
Would that help reduce felt recoil? My 10.5 lmt got a pretty good snap to it even with a break on it. Absolutely it will! I use them for that very purpose. |
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Posted: 2/10/2017 9:42:52 PM EDT
[#5]
No, a heavier buffer will increase felt recoil, because there is greater reciprocating mass.
If you want to reduce recoil and excess gas, you should use an adjustable gas block, as previously recommended. |
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Posted: 2/10/2017 9:45:56 PM EDT
[#6]
Quote HistoryQuoted:
No, a heavier buffer will increase felt recoil, because there is greater reciprocating mass. If you want to reduce recoil and excess gas, you should use an adjustable gas block, as previously recommended. It slows bolt velocity and lessens the strength of the impact at the rear of the buffer tube. Ideally, you want the buffer/BCG recoiling mass to barely make contact with the bottom of the receiver extension. That is the source of most of the felt recoil in a carbine. I have tuned carbine ARs like this for years and Ray Charles can see the lessened disturbance in the sight picture and notice the lesser felt recoil over the standard spring and carbine buffer. K=1/2MV^2 |
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Posted: 2/10/2017 10:00:37 PM EDT
[#7]
What do you think about using a stronger spring instead of a heavier buffer? (assuming the gas cannot be adjusted)
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Posted: 2/10/2017 11:42:38 PM EDT
[#8]
Quote HistoryQuoted:
What do you think about using a stronger spring instead of a heavier buffer? (assuming the gas cannot be adjusted) It would be a band-aid. IMO, the best way to fix the issue is to put an adjustable gas block or an adjustable gas key. |
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Posted: 2/10/2017 11:59:27 PM EDT
[#9]
Well yeah, anything other than reducing the gas is a band aid compensating for symptoms instead of fixing the cause.
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Posted: 2/11/2017 12:51:51 AM EDT
[#10]
I hear people calling it a Band-Aid. It may be a Band-Aid but it's a permanent Band-Aid and it's a Band-Aid that works and you don't have to fuck with your gas block.
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Posted: 2/11/2017 12:53:14 AM EDT
[#11]
If you really want to tame it down a VLTOR A5 receiver extension and a A55H2 or H3 buffer will be the most optimal solution.
It let you switch to a rifle Buffer spring. The rifle spring last longer and it loads up more gently. The more you can make your weapon act like a full l length gas system, the smoother it will operate. |
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Posted: 2/11/2017 10:41:55 PM EDT
[#12]
Quote HistoryQuoted:
I hear people calling it a Band-Aid. It may be a Band-Aid but it's a permanent Band-Aid and it's a Band-Aid that works and you don't have to fuck with your gas block. Here's the win. Don't increase buffer weight because it increases reciprocating mass. Do delay bolt opening and reduce BCG speed. You choice of means, FOR THIS UPPER, thus maintaining a standard lower set up that will function with almost any upper, agjustable gas block, adjustable BCG, fixed gas block with smaller port... but every fix which doesn't screw with the lower's adaptability is via the upper, and via gas reduction. JPK |
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Posted: 2/12/2017 1:23:21 AM EDT
[#13]
Quote HistoryQuoted:
Here's the win. Don't increase buffer weight because it increases reciprocating mass. Do delay bolt opening and reduce BCG speed. You choice of means, FOR THIS UPPER, thus maintaining a standard lower set up that will function with almost any upper, agjustable gas block, adjustable BCG, fixed gas block with smaller port... but every fix which doesn't screw with the lower's adaptability is via the upper, and via gas reduction. JPK Every upper and lower I have are married to a specific one. |
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Posted: 2/12/2017 4:52:31 PM EDT
[#14]
Quote HistoryQuoted:
If you really want to tame it down a VLTOR A5 receiver extension and a A55H2 or H3 buffer will be the most optimal solution. It let you switch to a rifle Buffer spring. The rifle spring last longer and it loads up more gently. The more you can make your weapon act like a full l length gas system, the smoother it will operate. Everywhere I look the a5 is OOS. NM...I'm stupid. I can get the whole kit for about the cost of just the extension. |
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Posted: 2/13/2017 9:54:58 AM EDT
[#15]
Thanks for the replies , a new gas block is out of the question , my SBR has a1 sights. I'm going to order the KNS Lafrance twin gas tube. From the limited info out there on it it should slow the bolt unlocking. I'll post a review of the thing once I get it. I can't find a single review on the web and Lafrance has been making them since the 90's.
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Posted: 2/13/2017 1:51:36 PM EDT
[#16]
Just skimming the thread, no Gemtech carrier?
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Posted: 2/17/2017 10:06:58 AM EDT
[#17]
I mentioned an adjustable carrier. Lost in the noise about a bandaid for a symptom rather than a cure for the cause, I guess.
JPK |
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