use a product called Evapo-rust. available on Amazon for 30 bucks. just soak it till its gone. amazing stuff. doesnt harm any other parts, just rust. an experience I had with it was soaking a side by side montgomery wards shotgun found standing in a closet of an abandoned house with no roof...
been looking for yugo M56 receiver template. either glued on a receiver tube or printed at the correct size and I can do it. found some bad uploads searching the net but several dimensions are pixeled out. a member last posted one for sale back in 2012. member thintheherd in new orleans. maybe...