Again, remain calm. It's a PITA but if you keep trying to break it free with force alone you'll end up damageing the barrel threads or the firearm itself. Either of these outcomes will leave you more frustrated. Google the issue and you'll see your not alone. Oil it and freeze it. Sounds dumb I...
You are also aware that the compact doesnt take a standard 22 thread adapter correct? It doesnt use the same adapters as the full size MP22, Walther P22, etc. There are a few specialty places selling them online though. Just hate for you to go through all the trouble of getting that thread...
The compact doesnt come with a wrench like it's big brother the full size, at least mine did not.
Its a well known documented problem with the new compact models that the protector is basically welded on. I just had the same issue a few weeks back. First thing is keep calm and quit trying to...