This kit features a brass cartridge case and real custom machined bullet tip. These are recycled casings. They have been tumble polished to clean them up and then buffed on a buffing wheel to polish the casing. Expect to see minor scratches, or imperfections in these kits. Bullet casings come from the factory with blemishes (small pits from their manufacturing process) and we do not sand and polish these out of the brass casings. However, you may do so if you feel the need to produce the "perfect casing". Please keep this in mind when placing your order.