The gun parts were marked using a 20-Watt Q-Switched Fiber Laser with a 160-mm lens. The parts were marked with 3 different types of Bushmaster logos. Two anodized aluminum magazine inserts were etched using the same parameters. However, the marking contrasts were different due to their different coatings. An anodized aluminum receiver was marked with both text logo and graphic logo. The parts were marked for contrast using the logos that were supplied by the customer.