Some repairs are neither advisable, nor affordable. The bolt action shotgun is deeply rust impacted. The M37 barrel lug is torn off. Running a shop is never a one at a time evolution. Learn how to use a file, make a chisel ridiculously sharp, and make springs. It can be done, and be done by you. NOT a tutorial...we show what you need to learn, not how to do . Cannot perform at this level? Do NOT attempt. Support us: https://www.patreon.com/anvil