I recently upgraded my uppers and replaced several that were older (10+ years), with new uppers from Bravo Company.

My question is around the various barrel lengths and the gas systems and which buffer to choose. I thread a found about this but it was 15 years old...

What's the consensus for buffer weights for?

​BCM MK2 SS410 18" Rifle length
​BCM MK2 BFH 16" Mid Length
BCM MK2 BFH 14.5" Mid Length

I have Carbine, H, and H2 buffers I think I might even have an H3 somewhere. I couldn't tell the difference between an H and an H2 in the 14.5"

Thanks,
Cam