The Violent Series Magnum regulator replaces the stock regulator giving you added length to hold on to. A lot of people have voiced their opinion on wanting a longer reg and we listened. The Magnum adds 1.1 inches in length over the stock regulator. For the best possible color match we had these anodized at the same facility Bob Long uses. Simply swap the internals from your stock regulator into the Magnum and you will be ready to go.