Oh the Pistons and the Barrels were Auto - Craft and went from $1600 to $1700 bucks. After trying to clean them up and seeing how bad the were I decided to just buy some cheap Pistons and Barrels because the barrels are made the same but the pistons are not. And the Pistons are still in good shape so I 'll install those in the new Barrels. Here is another video of one barrel where you can see the pin holes pockets and gullies in it. if you press the arrow on the left side of the photo it will take you to a couple photo's of the piston. It still need cleaned up in the photo, but other then that the pistons are in great shape. https://www.flickr.com/photos/kurtva...posted-public/