Iron type golf club head

An iron-type golf club head comprising:

• a head main body including a face, a hosel, a sole and a back portion extending upward from a trailing edge of the sole, and
• a weight member having a specific gravity larger than the head main body,
• wherein:
• the face is provided with score lines extending in a toe-heel direction of the head,
• the weight member is disposed in the sole and extends in the toe-heel direction across a position in the toe-heel direction corresponding to a center position of the score lines,
• the weight member integrally includes:
• a base plate part formed in the form of a plate and having a width in a front-back direction of the head which is gradually increased toward a toe of the head from the heel-side, and
• a rising part extending upward from a part on the toe-side of a rear edge of the base plate part so as to form a part of the back portion, and
• the weight member comprises:
• a toe-side first portion, as a part in the toe-heel direction having the rising part, extending over the sole and the back portion, and
• a heel-side second portion, as a part in the toe-heel direction without the rising part, positioned on a heel-side of the toe-side first portion and extending within the sole.