12" Barrel Suppressed and what buffer weight

[ScoutH57]

I tried combing through the forum with the search function but couldn't find specifically what I was looking for.

I had some pretty intense over pressure when I put my Omega can on my 18 inch Grendel. I used a JP adjustable block to make that one run soft smooth like a champ.

With this next build I'm wanting to try and see what I can do with just a carbine spring and buffer. (I'm aware of the JP System but don't really want one)

So anyone else with a similar setup have a suggestion? Figured I'd start with an H2 buffer

[tpk]

I've used H3 and 9mm buffers to reduce blow back. The H2 wasn't enough in my 12.5 w/carbine gas or 16 w/ mid length.

[ScoutH57]

Thanks for the response, I figured it would more than likely need at minimum an H2. I ordered some tungsten weights to play around with it for a little cheaper than buying a bunch of buffers.

[cory]

Yea, if you're not going to use an adjustable gas block, I'd use an H3/T3 buffer at a minimum.