A golf club head comprising a means for adjusting the location of the center of gravity and a slidable weight assembly are disclosed herein. The club head comprises two channels, each having at least one shoulder portion, a floor, and a rail extending upwards from the floor. The channels intersect at a junction, and a slidable weight comprising a top portion, a mechanical fastener, a clamping structure, and a keyed, anti-rotation structure is disposed within at least one of the channels. When the mechanical fastener is tightened, the top portion presses against the at least one shoulder portion and pulls the clamping structure upward so that the clamping structure grips the rail. The rails are spaced from one another at the junction, and the clamping structure allows the slidable weight to be moved into either of the channels without being indexed.