I am having an issue with my moderator and wondering whether or not anyone else has seen similar issues or can advise.
My rifle is new and been used three times to date, each time used everything is cleaned as per normal cleaning instructions and put away. Two weeks ago I took rifle out again and attached the moderator which resulted in a grinding noise coming from the thread of the mod. Took it off and it left a load of rust like deposits on the rifle thread. So cleaned it all and put it back together no issues, went out and used it and came home cleaned everything again taking more care over the thread of the mod. Once cleaned I oiled the thread and put it away. Again today I took it out and the thread of the mod is covered in a brown metallic rust like deposit again.
Is this normal? Should I be doing something different when cleaning it? How do you stop it from occurring?
Any help is greatly appreciated.