For years grips have asked why Berkey System components aren't manufactured in the same size as grip gear and to them we would say "Grip gear is made in the wrong size!" As you might have guessed, that did not go over very well. In a effort to make friends with the grips on any crew, Berkey System is now offering a number of components based on the 5/8th's inch standard for grip gear. Berkey System components are made from 6061 aluminum and are black anodized for durability. All Berkey System products are made in the USA and are covered by our Lifetime Warranty. See Terms and Conditions for details.