It might be fixed with staking or soldering. A little item is that the pin which retains the firing pin spring cap tended to work unfastened, and had to be tapped back in place as 1 noticed it task from the rear with the bolt. Winchester replaced that pin in https://highimpactrounds.com/product/winchester-super-x-12ga-2-75in-1oz-6-lead-shot-1290fps-25-rd-bx/