This is Austrian built MOS. Irun has contacted me and I will keep updated.
**update** Irun and Glock contacted me immediately.Irun is on top of it and the barrel will be returned to
Glock for refinishing. Have to admit the customer service I received from both especially Irun is the best I have ever had from any company regarding any product. Good to see someone these days admitting these things happen owning up and rectifying it immediately with no run around. I also like Irun and didn’t want to cross them off my list as they always have the stuff that everybody else seems to be out of stock of in Canada.