PXG’s unique club numbering system references the Marine Corps’ Military Occupational Specialty (MOS) system. This numbering protocol is found on all PXG Drivers, Fairway Woods, Hybrids, and Irons. Products like putters are also named for military equipment and weapons. This…

Fred Kaiser, Frisco Liberty Boys, discusses the Interrelatedness of Job Descriptions, Numbering System, and Principles of Play on Attack and Defending.

The numbers we use to differentiate our various golf clubs (i.e. irons, hybrids, fairway woods, driver) are in tribute to the United States Marine Corps. Here’s why.