An old generation of the PWS line I know, but has anyone supressed the diablo 5.56 Mod0 uppers?

I got 6 rnds of xm193 through it with an Ecco Machine 5x5 can before the buffer tube was popped off the lower.... i could tell the h2 buffer even with a wolf extra power has bumping the rear of the tube but it sure didn't feel THAT bad and the buffer wasn't getting chewed up.

What buffer weight/spring weight system are you using?

Just curious, was that the buffer tube that came with the SBA3?

I have a MK107 mod 0.
SpringCo red/ RRA 9mm buffer.
About 10-12k rnds. through it.
Can't help you on the suppressor.
There's a YouTube vid somewhere on Mk107 mod 0 w/ a Brevis can. Runs it on auto as well.
I'll look.

Edit
https://www.snipershide.com/shooting/threads/pws-mk107-diablo.105900/page-2

It looks like your brace tube may have had issues to start with.  What gas setting are you running. I can't remember if those are 3 or 5 setting.  I have two MK111's one in 556 and one in x39.  Both of them have H2 buffers and IIRC Tubs heavy springs.  I run them on the lowest gas setting with a DA Nomad and it is very pleasant to shoot.  No harsh slamming of the buffer.

That is with a regular tube and stock on SBR lowers.

I run a Sandman-S on my 7.75 Diable.  It runs well.