sbr buffer

[Chappy4o]

hey all i was curious what weight of buffer i should run on my 300 SBR/pistol build (havent decided yet). I am going to be running an adjustable GB so would i be able to just run a standard carbine or an H buffer and tune it in or should i start out with something a little heavier?

Thanks

[plant.one]

the standard rule of thumb is this

carbine gas sytem = carbine buffer

pistol gas system = h2 buffer


with an AGB you'll be able to bend those rules and likely get away with a lighter buffer, but you'll also probaly find yourself needing to dial the gas block up and down more often than if you were to go with the heavier buffer instead, and then do some light tuning with that in play.


a properly put together pistol gas barrel will cycle all 4 ways (suppressed/unsuppressed subs, suppressed/unsuppressed supers) with a h2 buffer and standard spring.

[bamashooter]

hey all i was curious what weight of buffer i should run on my 300 SBR/pistol build (havent decided yet). I am going to be running an adjustable GB so would i be able to just run a standard carbine or an H buffer and tune it in or should i start out with something a little heavier?

Thanks

I'd just go with a H2 and call it good. But it'd be good to know barrel length, gas port diameter, supers, subs, suppressed, etc.