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User Panel
User Panel
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Posted: 6/29/2021 10:12:29 AM EDT
[#1]
I do not know different lengths but in industry if you want to measure pressure at the output of a pipe the closer to the outlet the better.
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Posted: 6/29/2021 10:53:46 AM EDT
[#2]
Yes, all of the buffers travel the same length. The A5 guys rabidly defend it. The military uses both rifle length and carbine length on even 20" bbls, so the carbine length is good enough for combat.
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Posted: 6/29/2021 1:43:51 PM EDT
[#3]
Rifle is seen as more reliable and easier on parts because of the gas system, not the buffer system.
If you match the weight of a rifle buffer in a carbine buffer tube (H2 or H3) with a rifle gas system, it will be 100% the same, functionally. |
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Posted: 6/29/2021 5:04:07 PM EDT
[#4]
Quote HistoryQuoted: Rifle is seen as more reliable and easier on parts because of the gas system, not the buffer system. If you match the weight of a rifle buffer in a carbine buffer tube (H2 or H3) with a rifle gas system, it will be 100% the same, functionally. Army forbids the use of the H2 buffer w/ 20" bbls, requires an H6 buffer instead - likely for anti-bounce under 3-rnd burst. |
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Posted: 6/30/2021 12:26:01 AM EDT
[#5]
thanks for the clarification!
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Posted: 6/30/2021 10:08:07 AM EDT
[#6]
As mentioned, the gas port size is a big part of the equation.
I have seen a 5.56 16" barrel , .100 carbine length gas port size... that is huge ( and I should mention very much an extreme, Colt uses around .062" ) . That GP size with the cheap parts used, literally broke the owners hammer pin in half. So... with a system like the A5, the A5 offers some pretty heavy buffer weights, and that allows someone to "tune" the impact of the various GP sizes and gas system lengths to their AR. |
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Posted: 6/30/2021 12:24:41 PM EDT
[#7]
Quote HistoryQuoted: Rifle is seen as more reliable and easier on parts because of the gas system, not the buffer system. If you match the weight of a rifle buffer in a carbine buffer tube (H2 or H3) with a rifle gas system, it will be 100% the same, functionally. . . . . and carbine spring . . . . |
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Posted: 7/1/2021 1:54:02 PM EDT
[#8]
The springs are different. A rifle buffer or A5 buffer uses a longer spring that doesn't compress as much as a carbine buffer's carbine spring.
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Posted: 7/4/2021 12:15:52 PM EDT
[#9]
An A2 stock is also quite a bit heavier than an M4 stock.
I had a 16” 7.62x39 upper I ran on a lower with an M4 stock & H3 (5oz) buffer for years. Then switched to an A2 stock & std. rifle buffer (5oz) and the felt recoil was slightly softer. Later I switched over to an ACE A2 skeleton stock which is much closer to an M4 in terms of weight, still felt less recoil. The rifle springs I’ve seen seem a bit softer than std. carbine springs, actually much closer to a Sprinco yellow. |
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Posted: 7/16/2021 5:15:03 AM EDT
[#10]
The amount of travel is the same, but the rifle buffer spring is longer than the carbine buffer spring.
It has more turns of coils in it and a different rate of pressure per inch. If the same type of spring wire is made longer with additional coils, its rate of pressure per inch decreases. If a spring is shortened by removing coils, its rate of pressure per inch increases. I do not know if the spring wires are exactly the same, but the rifle buffer spring is longer, with more coils than the carbine buffer spring and the wires do look similar in size. |
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