I watched 3 videos on tearing it all down. Never went past the lever and bolt before. The best one was by an Aussie, from his accent. Although it was a stainless steel one. His parts were WAY brighter than mine. But did learn all the places to smooth out on the innards. His was a newer one with cross bolt safety and he said ( and showed ) all the places it was rough, and had burrs. Nobody took off the mag tube but it was easy. I also removed the rear and front sight and found that who ever put on the scope base only used TWO screws ..... , but they were done with lock tite. I will find two more in my parts drawers. If I don't have any that fit will have to get some more. I am done for the night. First passes with 100 grit is done. Looks 1000% better already. Back at it tomorrow for a full day.