The action isn't nearly as smooth as I would expect, particularly as the bolt closes. I can see a fair amount of debris around the lugs but I can't get to it with removing stuff.
Where's the O-ring that was mentioned? Does it seat the magazine tube to the receiver?
Thanks everyone for your input.
Have you cycled another M760 to compare to your gun? I’ve owned three and and I’d never describe the actions as smooth. IMO the operation is pretty violent, especially as the bolt closes.
