I bought my shotgun from a buddy for $75. Then I went to work. I shortened the stock and added a recoil pad so it fit me. Then I removed the finish on the stock and painted it black. (the finish was pretty much gone already)

I cut mine down to 18-1/2 inches with a hacksaw. Then filed it square. Broke the edges with a file. Then sanded her nice and smooth. A little cold blue and she was done other than installing the sight.

I have about $100 invested in it and am very happy with the results.