only1najeep
New member
I ordered a stock kit from Bravo CO. and when I ordered it I had to enter what weight I wanted for the Buffer. What difference is there in the weights? Why would I need different other than Standard?
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Buffer weights?
- Thread starter only1najeep
- Start date
From what I've read, carbine's are overgassed (by design) and need a heavier buffer to slow things down a bit. H and H2 buffers seem to be the most recomended.
If you have a mid length gas system that is NOT overgassed, standard buffer is fine.
Standard is what I run in my BCM Midlength.
If you have a mid length gas system that is NOT overgassed, standard buffer is fine.
Standard is what I run in my BCM Midlength.
Technosavant
New member
The usual recommendation is to run the heaviest buffer that will still allow for perfect function.
madcratebuilder
New member
Every rifle well be different but what Technosavant said is the general rule. There are many variables, what ammo you use has a big effect.
Bartholomew Roberts
Moderator
The standard carbine buffer was developed to work with a particular gas system (the XM177 gas system). It works with the M4 gas system and 14.5" barrel fairly well since one of the problems with the XM177 series was a short dwell time. With the M4A1, it works less well since as the rifle gets hotter in full auto it cycles faster and the standard buffer is marginal. This is why the "H" buffer is now the standard for both the M4 and M4A1.
In civilian rifles that don't see a lot of full auto, the standard carbine buffer will usually work; but heavier buffers are often used because the additional dwell time in a 16" barrel can create the same problems with timing - especially when combined with slightly oversize gas ports that are also common.
Basically, if you want to delay the extraction and the cycling of the weapon for some reason (spread recoil out over a longer time period/slow down an overgassed bolt carrier/using a suppressor/give magazine a little extra time to push the next round into place), then you go with a heavier buffer. You can also go the other way and go as light as possible with the buffer and bolt carrier on the idea that less reciprocating mass will disturb your sight picture less and be back on target faster - although here the problem will be that the lighter mass is easier to stop with debris or fouling and the faster cycling will mean less time for your magazine to feed the next round.
In civilian rifles that don't see a lot of full auto, the standard carbine buffer will usually work; but heavier buffers are often used because the additional dwell time in a 16" barrel can create the same problems with timing - especially when combined with slightly oversize gas ports that are also common.
Basically, if you want to delay the extraction and the cycling of the weapon for some reason (spread recoil out over a longer time period/slow down an overgassed bolt carrier/using a suppressor/give magazine a little extra time to push the next round into place), then you go with a heavier buffer. You can also go the other way and go as light as possible with the buffer and bolt carrier on the idea that less reciprocating mass will disturb your sight picture less and be back on target faster - although here the problem will be that the lighter mass is easier to stop with debris or fouling and the faster cycling will mean less time for your magazine to feed the next round.