H6 Buffer

[CESwartz07]

Hey look, a thread from 5 1/2 years ago that reaches much the same conclusions!

https://www.m4carbine.net/showthread...7657-H6-Buffer

And yeah, I bought my H6 around or shortly after that discussion. Like many I like to try stuff out for myself.





My experience is that an H3 and stiff spring will make most rifles choke and FTF. I've only had good luck with an H3 on an Adams Arms piston setup, which was outrageously overpowered and is no longer in my collection. If your rifle can run with an H3 and Springco red installed, even on the hottest legit military ammo, you should replace the barrel or install an adjustable gas block. Maybe an exception if all your shooting is at air temperatures of 100 and higher.

I looked up the prior thread to confirm the weight, which is 5.15oz in that thread and reported elsewhere as 5oz. Either way, slightly lighter than an H3. I would take an H6 before an H3, and in fact my H3 is currently not in use, but kept on hand in case I encounter something that overgassed. OP, I think an H2 and a quality spring (not necessarily Springco, although their blue is fine) is the most that I would spend money on for your stated use.

Sample of 1, but my 11.5 BCM BFH ran happily with an H3 and Red spring, and my new Geissele 10.3” upper shipped and runs well with an H3 and their super42 spring. IMO, H2 is minimum weight on most 14.5-16” guns, and SBRs run well with H3s. And I shoot 223 exclusively. YMMV


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