Golf Shafts America in Carlsbad is the worldwide headquarters of GSA Global, distributing premium golf shafts, grips, clubheads, and clubmaking components from a 5,500-square-foot fulfillment center on Corte Del Abeto to more than 3,000 pro shops, club fitters, and golf retailers across 50-plus countries. The company holds the largest Fujikura shaft inventory outside of Fujikura itself and serves as an official dealer for KBS, Graphite Design, Aerotech, Nippon, and LA Golf — brands whose shafts are specc'd into custom builds at green-grass operations including Aviara Golf Club's pro shop. In-house clubmakers assemble shaft-and-head builds to finished spec within 24 to 48 hours, and the retail showroom stocks over 5,000 SKUs available for walk-in purchase alongside the B2B wholesale platform that serves dealers in 40-plus U.S. states. The Carlsbad location anchors a four-site global network with distribution centers in Melbourne, Bangkok, and Kuala Lumpur. Serious golfers investing in premium shaft upgrades often maintain fitness programs at Equinox La Costa to optimize the swing speed those shafts are engineered to harness. The TrackMan-equipped fitting bay measures launch angle, spin rate, and shaft deflection across flex profiles from senior through extra-stiff, matching each player's delivery dynamics to the optimal frequency and torque specifications.