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Old 02-20-2012, 10:44 AM
philevans philevans is offline
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Default heavier buffer

some owners of the sport have installed a heavier buffer and spring, saying it will reduce wear on the carbine length rifle.
are there any symptoms one should look at or feel to determine if a heavier buffer is needed?
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Old 02-20-2012, 11:20 AM
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Hi..If you look at the thread about the buffers, I believe you will find the answers you are looking for, just trying to save everyone from retyping all the information there. If you need I can find it for you and send you the link.

By the way I havent changed it yet...gotta wait for a little more money before the Chief Financial Officer wont have a cow!!!!
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Old 02-20-2012, 11:24 AM
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Use of an H buffer is subjective and up to you. Your M&P should run great with the factory CAR buffer with no ill effects. After doing some search fu I've found the general answer is there is no real proof an H buffer increases reliability in a carbine length gas system. I've read H buffers help more with wear and tear and controlability of a burst/auto weapon by slowing the cycling a tad..... but again its up in the air..... Some say you have a reduced felt recoil impulse with the H buffer but again it's subjective.

You can always buy an H buffer and try it out, or you could go with the "if it aint broke dont fix it" routine but again your gun should be fine with its buffer as is.
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Old 02-20-2012, 12:54 PM
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For reference.


Carbine Buffer. Reads 3.0 oz. on my cheap digital scale.


H Buffer. Reads 3.9 oz. on my cheap digital scale.


H2 Buffer. Reads 4.8 oz. on my cheap digital scale.
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Old 02-20-2012, 01:35 PM
Mustang5L5 Mustang5L5 is offline
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Paraphrasing from what I read on arfcom.

You want the heaviest buffer that will still lock back on an empty mag, while firing underpowered ammo (wolf?) with a dirty rifle (500+ rounds)



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