Features: 2000 Series alloy provides extreme strength for extreme conditions. Dedicated forging for greater strength and light weight. Premium-quality rings enhance sealing for each application. ArmorFit™ skirt coating conforms to the bore for the ultimate in piston control and wear. ArmorPlating® protects the crown from harmful detonation, improves pinbore for decreased wear and bore deformation and enhances ring seal for long life and performance. Made in the USA.