Remove stock, trigger, scope & mounts, and send it to Remington in Ilion. They will install a new bolt. You do not need to send the stock, that's just more expense. Trigger removal is to keep your adjustment intact. I lost a $100.00 rework on a trigger this way, when they replaced it with a new one. Remington WILL NOT return any old parts.,,,,,,,,,,,,,,,Bug.