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H buffer in MK12 Mod 0 with sopmod

I run a Spike's ST-T2 buffer in mine with zero issues. The ST-T2 is roughly the same weight as the H2 buffer, but adds the benefit of no sliding buffer weights (Spike's uses HD Tungsten powder instead) which in my experience, really does a great job of cutting down on noise and mitigating recoil. I have also run a basic H2 without having any function issues at all.

YMMV depending on what ammo you are shooting, what spring you are running, etc., etc.
 
Ord, pretty sure its has a cs or tubbs spring in it. I will have to check though, shooting BH mk262 or my own 77grainers. I looked at the Spikes, thanks for the reminder about it being tungsten and not sliding weights, may have to give it a try.
 
Ord, pretty sure its has a cs or tubbs spring in it. I will have to check though, shooting BH mk262 or my own 77grainers. I looked at the Spikes, thanks for the reminder about it being tungsten and not sliding weights, may have to give it a try.

Should be fine running that setup/ammo. I run a variety of springs but I'm running a Wolff XP in mine right now bc sometimes it gets shot suppressed and I don't have the benefit of an adjustable gas block (obviously) bc it is setup like a true Mk12 MOD0 (externally anyway). ;)
 
I'm also running a H2 in mine, with a SOPMOD. Also ran a standard weight for a short time, I really couldn't feel a difference. My ejection is more consistent to 5 o' clock with the H2.
 
Anyone using a h or h2 buffer in mk12 mod 0, any thoughts yea or nay. Those who are, have you noticed any benefit compared to standard buffer.

I have a BCM SPR setup with a carbine stock and it doesn't run with an H2 buffer however it is 100% with a standard weight buffer. I think that it is one of those things where if your rifle is overgassed then give it a try otherwise not worth it.
 
Anyone using a h or h2 buffer in mk12 mod 0, any thoughts yea or nay. Those who are, have you noticed any benefit compared to standard buffer.


Just a heads up. If you have to run an H of H2 buffer something is wrong.

While I would NOT do this on a work or combat gun for the range and 3gun its OK. I installed a LMOS JP carrier, Tubbs flatwire spring, adj JP gas block and EMPTIED THE WEIGHTS OUT OF MY BUFFER SO IT WEIGHED ONLY .30oz YES 1/3RD OF AN OUNCE. I then tuned the rifle with the gas block to eject at 3:30pm and it ran fine with no failures of any kind for thousands of rounds and virtually no recoil impulse. It felt like I was shooting a loud 10/22 rifle. I was also running a SF brake on the front.