Is anyone using one in a 9mm with success?
I had to remove the extra weight in my bolt carrier
For it to function.
They list total mass as 8.5oz which is the same as the
Slash buffer I have used until now.
Mostly concerned with it running smoother/faster with less recoil.
The reciprocal mass really moved the gun around under recoil.

The Slash buffer was used with a Wolff Xtra power spring.
I have removed a good bit of weight when it's added up.

Travel of the carrier is slightly past the bolt catch but not excessive.
I'm hoping for reduced recoil and smoother operation without
Increased wear on the gun.
It's an SBR run 100% suppressed that has seen high use and
will continue to see high use.

Using both the JP 9mm BCG and buffer set up without any issues. 100% reliable.

Im using the JP 9mm buffer setup. QC10 colt lower and a tros 5.5" barrel. CMG ramped bolt. Runs 100% for me out of the box. regular spring nothing special.