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An iron golf club head consisting of a back portion, a weight portion, and the cavity portion, which form a “multi-tier” weight distribution configuration. The cavity portion being delineated by a top segment, a toe segment, a sole segment and a heel segment. The first tier is defined by the back po

An iron golf club head consisting of a back portion, a weight portion, and the cavity portion, which form a “multi-tier” weight distribution configuration. The cavity portion being delineated by a top segment, a toe segment, a sole segment and a heel segment. The first tier is defined by the back portion between the sole and the sole segment of the cavity portion. The second tier is defined by the weight portion, which is recessed from the back portion and is located between the sole segment of the cavity portion and a top edge that is located a predefined height above the sole segment. The third tier of the weight distribution configuration is defined by the cavity portion between the upper segment of the weight portion and the upper edge of the cavity portion.

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1. An iron golf club head, comprising:a face portion; a sole portion; a back portion; and a cavity portion proximate to the back portion, comprising a top segment; a toe segment; a heel segment; and a sole segment having a first contour; wherein the sole segment is located at the intersection of the

1. An iron golf club head, comprising:a face portion; a sole portion; a back portion; and a cavity portion proximate to the back portion, comprising a top segment; a toe segment; a heel segment; and a sole segment having a first contour; wherein the sole segment is located at the intersection of the back portion and the cavity portion, such that a first weight portion is formed by the back portion extending upward from the sole portion to the sole segment; and a raised weight potion located within the cavity portion extending between the sole segment and a predefined distance above the sole segment and having a second contour. 2. The iron golf club head of claim 1, wherein the first contour comprises an arc having a first radius and the second contour comprises an arc having a second radius, wherein the second radius is greater than the first radius.3. The iron golf club head of claim 2, wherein the first arc is centrally located to a ball striking portion of the face portion and the second arc is centrally located to the ball striking portion of the face portion.4. The iron golf club head of claim 2, wherein the first arc is centrally located centrally to a ball striking portion of the face portion and the second arc is located at a position offset from to the ball striking portion of the face portion.5. The iron golf club head of claim 4, wherein the second contour is located at a predetermined height above the first contour, such that the height of the second contour above the first contour is greater toward the toe portion than the heel portion.6. The iron golf club head of claim 1, wherein the first contour extends between the heel segment and the toe segment.7. The iron golf club head of claim 6, wherein the second contour extends between the heel segment and the toe segment.8. The iron golf club head of claim 1, wherein the iron golf club head is forged.9. The iron golf club head of claim 1, wherein the iron golf club head is cast.10. The iron golf club head of claim 1, wherein the first contour and second contour extend between the heel segment and the toe segment.11. A cavity-back golf club head having a multi-tiered weight configuration, comprising:a face portion; a sole portion; a back portion; and a cavity portion proximate to the back portion, comprising a top segment; a toe segment; a heel segment; and a sole segment, wherein a first tier weighs portion is formed by the back portion extending from the sole portion to the sole segment of the cavity portion having a first contour; a second tier weight portion recessed from the first tier weight portico comprising an upper segment having a second contour and extending from the sole segment located a predefined distance above the first tier weight portion; and a third tier weight portion recessed from the second tier weight portion and formed by the contour of the upper segment of the second tier weight portion and the top segment of the cavity portion. 12. The iron golf club head of claim 11, wherein the first contour comprises an arc having a first radius and the second contour comprises an arc having a second radius.13. The iron golf club head of claim 12, wherein the second radius is greater than the first radius.14. The iron golf club head of claim 13, wherein the first arc is centrally located to a ball striking portion of the face portion and the second arc is centrally located to the ball striking portion of the face portion.15. The iron golf club head of claim 13, wherein the first arc is centrally located centrally to a ball striking portion of the face portion and the second arc is located at a position offset from to the ball striking portion of the face portion.16. The iron golf club head of claim 11, wherein the iron golf club head is forged.17. A set of iron golf club heads, comprising a plurality of long irons, a plurality of middle irons, and a plurality of short irons, wherein each of the plurality of long irons, middle irons, and short irons comprise:a face portion; a sole portion; a back portion; and a cavity portion proximate to the back portion, comprising a top segment, a toe segment; a heel segment; and a sole segment, wherein a first tier weight portion is formed by the back portion extending from the sole portion to the sole segment of the cavity portion, and the sole segment being an arc having a first radius centered on the center of mass of the iron golf club head; a second tier weight portion recessed from the first tier weight portion comprising an upper segment, the upper segment being an arc with a second radius and extending from the sole segment to a predefined distance above the first tier weight portion, wherein the center of the second arc is offset from the center of mass of the iron golf club head toward the toe portion for each of the plurality of irons; and a third tier weight portion recessed from the second tier weight portion and formed by the contour of the upper segment of the second tier weight portion and the top segment of the cavity portion. 18. An iron golf club head comprising:a face portion; a sole portion; a back portion; and a cavity portion proximate to the back; portion, comprising and a top segment; a toe segment; a heel segment; and a sole segment having a first contour, wherein the first contour comprises an arc having a first radius centrally located to a ball striking portion of the face portion; and a raised weight portion located within the cavity portion extending between the sole segment and a predefined distance above the sole segment and having a second contour, wherein the second contour comprises an arc having a second radius located at a position offset from to the ball striking portion of the face portion, wherein the second radius is greater than the first radius.