Can anyone tell me how to clean off the black markings on the side of my titanium 329pd cylinder up near the front. They appeard after firing the gun for the first time and are only getting worse. I have tried many products with no...
Can anyone tell me how to clean off the black markings on the side of my titanium 329pd cylinder up near the front. They appeard after firing the gun for the first time and are only getting worse. I have tried many products with no...