I parkerized the side rails, yoke and crank. The barrels are cold blued with liquid oxpho-blue. I need to make an ejector to mount under the magazine base yet before I can test fire the gun. I couldn\'t find any drawings of this piece in the blueprints anywhere.
I have found that if the barrels are dipped in the oxpho-blue instead of rubbing it on, a nice even blueing will be the end result. A piece of 3/4 inch PVC pipe that is a couple of inches longer than the barrels with a cap glued on one end works great. Just hold the pvc pipe vertically in a vise and fill it about 2/3 full of oxpho-blue. Plug your barrels with wooden dowels on each end with one end longer for a handle to dip with.
bruski