A golf putter system including features that allow customization of the overall weight of the putter head, as well as the distribution of the weight. The golf putter includes a shaft and a head that is attached to an end of the shaft. The head typically includes an elongated body including a front face having a substantially flat putting surface adapted to strike a golf ball on a ball striking area disposed on the putting surface. The system normally includes a plurality of elongated end members that are releasably attachable adjacent each end of the body. The end members, when attached, may allow a user to configure the overall weight of the head and may allow a user to configure the location of the center of mass of the head. The end members generally include a rear portion that, when attached, extends beyond a rear surface of the body, axes that are substantially perpendicular to a longitudinal axis of the putting face when attached, as well as, end sight lines that mark the axes of the end members. When the end members are attached to the head, the end sight lines are typically spaced apart by a width that is similar to the diameter of a golf hole. Other embodiments are herein described.