The B3 AB is a 100% composite bat, with the legendary feel of a Combat and BBCOR performance. The B3 AB uses localized stiffening of the barrel to achieve BBCOR performance. - LOCALIZED STIFFENING TECHNOLOGY (LST) - Allows for a traditional composite feel while maintaining BBCOR standards - MEMBRANE MODAL CONTROL (MMC) - Allows composite construction to maintain the highest performance standards allowed for the life of the bat - SWEETSPOT TECHNOLOGY (SST) - Combat composite technology to provide the largest sweetspot available under BBCOR bat performance standards.