I have a ~2015 AAC suppressor (Cyclone 7.62) that weighs over a pound more than it used to due to carbon build-up. Where might I get it serviced? Palmetto State is not honoring any warranty service on them.

Apparently AAC is still in business, albeit a different company than manufactured mine. I'm waiting for a call back from them. The website indicates they will service older (pre 2021) units for a fee.

Nope, AAC won't do it. Going to plan B (?)

Soak it in Dawn dishwasher detergent & hot water for 12-24hrs.
Repeat
Rinse
Shoot it