Abstract: A multi-weight assembly for a golf club head includes a primary weight and a weighted retainer. The primary weight is inserted into a socket, which may be formed in a low-toe region of the golf club head, while the weighted retainer secures the primary weight within the socket. The primary weight and weighted retainer may be formed of different materials and/or have difference masses, thereby allowing for greater variation and range of total mass provided by the multi-weight assembly. In some examples, the primary weight provides a coarse adjustment of total mass, while the weighted retainer provides a fine adjustment of total mass.

Abstract: Described herein is a hollow body iron-type golf club head having a sole and ballast configured to relieve stress within a forward region of the sole. In a first configuration, the golf club head comprises a ballast undercut for relieving stress. In other configurations, the ballast undercut is combined with additional stress relief features, such as a cascading sole near the face sole juncture, for further reductions to face thickness. In further configurations, the ballast defines a recess for receiving a ballast weight having a density greater than the body, thereby improving mass properties of the golf club head.

Abstract: A golf club head with a pneumatic insert is described herein. The pneumatic insert comprises a membrane enclosing a hollow chamber filled with a pressurized gas. The pneumatic insert occupies at least a portion of the club head cavity and is secured in the cavity by one or more retainers. The pneumatic insert damps club head vibrations and reinforces portions of the club head, thereby improving club head sound, feel, and ball flight performance.

Abstract: Described herein is an iron-type golf club head comprising a shortened hosel and lengthened hosel bore. The iron-type golf club head allows for a range of loft and lie adjustability post-manufacture with maintained or reduced visible surface deformation and durability loss, and also creates discretionary mass that can be placed strategically for performance benefits.

Abstract: Embodiments of a stick weight assembly for use within a shaft of a golf club, wherein the shaft includes a shaft inner surface defining a shaft bore, the stick weight assembly comprising: a stick weight comprising: a rod sized for insertion into the shaft bore, the rod having a top end and a bottom end, wherein the top end defines an outer top end geometry; a disk coupled to the rod bottom end and sized to abut a tip end of the shaft; and a stick weight support comprising: a first end; a second end; a first portion having an outer surface defining a dome wherein the dome is sized for insertion into the shaft; a second portion coupled to the first portion comprises an outer surface and a plurality of ridges projecting outward from the outer surface and sized to engage the shaft inner surface; wherein the stick weight support defines a cavity extending from the second end towards the first end, wherein the cavity is configured to receive the top end of the rod.

Abstract: Embodiments of an iron-type golf club head comprising an L-shaped faceplate configured for flexibility are described herein. The L-shaped faceplate comprises a strike face portion and a sole return that wraps around a leading edge of the golf club head. In some embodiments, the L-shaped faceplate further comprises a top rail extension and a toe extension that extend to the peripheries of the golf club head. The golf club head comprises a rear body configured to receive the L-shaped faceplate to form a hollow interior cavity. The rear body comprises a sole ledge configured to receive the sole return. In some embodiments, the golf club head further comprises a weight pad that overhangs a portion of the sole return. In some embodiments, the golf club head further comprises dynamic lofting features that increase the bending in the rear body.