Abstract: The present invention provides various embodiments of a gutter cap and a locking system that couples the gutter cap to the gutter. Because the gutter cap is not directly fastened to the gutter by the locking system, as is the case with many prior art designs, the cap is allowed to move slightly with respect to the gutter, and vice versa. This feature of the present invention reduces the likelihood that movement of the gutter will result in damage to the gutter cap, and vice versa. In accordance with the present invention, the coupling of the cap to the gutter is accomplished by using one or more clips that are configured to secure the cap to the gutter at one or more locations in a way that allows the gutter and the cap to move independently of one another.