Weighted golf club head

1. An iron-type golf club head comprising:

a body comprising a top line, a sole, a heel side, a toe side, a frontal opening, and a protrusion;

a sound modulation feature composed of a lightweight, non-metal material; and

a face component comprising a striking face covering the frontal opening,

wherein the protrusion is located proximate the frontal opening and extends towards the face component and through the frontal opening without touching any portion of the striking face,

wherein the protrusion extends from the heel side to the toe side and does not comprise any hollow regions,

wherein the face component is a face cup that comprises an upper flange and a lower flange, and wherein each of the upper flange and lower flange extends rearwards away from the striking face, and

wherein the sound modulation feature is compressed between the protrusion and a rear surface of the striking face;

wherein the sound modulating feature is spaced at least 0.5 inch from a center of the rear surface of the striking face and disposed approximately 0.075 inch vertically from the lower flange.

2. The iron-type golf club head of claim 1 , wherein the upper flange comprises a first length, wherein the lower flange comprises a second length, and wherein the first length is less than the second length.

3. The iron-type golf club head of claim 2 , wherein the second length is between 5 mm and 10 mm.

4. The iron-type golf club head of claim 1 , wherein the face component is welded to the body to form a weld line, and wherein the protrusion extends over the weld line.

5. The iron-type golf club head of claim 1 , wherein the frontal opening extends completely through the body so that the body comprises a rear opening.

6. The iron-type golf club head of claim 5 , further comprising a back cap, wherein the back cap is disposed over the rear opening.

7. The iron-type golf club head of claim 1 , wherein the protrusion comprises an upper surface and a front surface, and wherein the upper surface is disposed approximately perpendicular to the front surface.

8. The iron-type golf club head of claim 1 , wherein the lower flange comprises variable thickness.

9. The iron-type golf club head of claim 1 , wherein the protrusion is integrally cast with the body.

10. An iron-type golf club head comprising:

a face cup comprising a striking face, an upper flange, and a lower flange;

a non-metal sound modulation feature; and

a body comprising a top line, a sole, a heel side, a toe side, a frontal opening, and a protrusion,

wherein the frontal opening extends completely throughout the body to form a rear opening,

wherein the upper flange comprises a first length,

wherein the lower flange comprises a second length that is longer than the first length,

wherein the striking face comprises variable thickness,

wherein the sound modulation feature is disposed between the protrusion and a rear surface of the striking face,

wherein the sound modulation feature is spaced at least 0.5 inch from a center of the rear surface of the striking face;

wherein the sound modulating feature is spaced at least 0.5 inch from a center of the rear surface of the striking face and disposed approximately 0.075 inch vertically from the lower flange, and

wherein the protrusion is located proximate the frontal opening and extends through the frontal opening towards the face component without touching any portion of the face cup.

11. The iron-type golf club head of claim 10 , wherein the protrusion bridges at least a portion of the sole.

12. An iron-type golf club head comprising:

a face cup comprising a striking face, an upper flange, and a lower flange;

a body comprising a top line, a sole, a heel side, a toe side, a frontal opening, and a protrusion; and

a plurality of pins,

wherein the frontal opening extends completely throughout the body to form a rear opening,

wherein the upper flange comprises a first length,

wherein the lower flange comprises a second length that is longer than the first length,

wherein the striking face comprises variable thickness,

wherein the protrusion is located proximate the frontal opening and extends through the frontal opening towards the face component without touching any portion of the face cup,

wherein the protrusion bridges at least a portion of the sole, and

wherein each of the plurality of pins is disposed between the sole and the protrusion.

13. The iron-type golf club head of claim 10 , wherein the protrusion is composed of a plurality of materials.

14. The iron-type golf club head of claim 13 , wherein at least one of the plurality of materials is a tungsten alloy.

15. The iron-type golf club head of claim 10 , wherein the face cup is welded to the body to form a weld seam.

16. The iron-type golf club head of claim 15 , wherein the weld seam has a constant thickness.

17. The iron-type golf club head of claim 10 , further comprising a back cap, wherein the back cap is affixed to the body and covers the rear opening.

18. An iron-type golf club head comprising:

a face cup comprising a striking face, an upper flange, and a lower flange; and

a body comprising a top line, a sole, a heel side, a toe side, a frontal opening, and a protrusion,

wherein the frontal opening extends completely throughout the body to form a rear opening,

wherein the upper flange comprises a first length,

wherein the lower flange comprises a second length that is longer than the first length,

wherein the striking face comprises variable thickness,

wherein the protrusion is located proximate the frontal opening and extends through the frontal opening towards the face component without touching any portion of the face cup,

wherein the protrusion comprises an upper weight portion and a lower support portion,

wherein the upper weight portion is composed of a first material having a first density,

wherein the lower support portion is composed of a second material having a second density, and

wherein the first density is greater than the second density.