Abstract: A baseball or softball bat configured to allow the removal and replacement of the barrel section of the bat if the barrel is damaged or simply for enabling selection of a barrel having particular performance characteristics. Alternatively, the barrel may be selectively changed to meet certain regulation requirements. In one aspect, one or more components of the ball bat can be provided as a kit. In another aspect, the ball bat can be made by forming and assembling the components simply and inexpensively. Exemplary embodiments include a center tube or handle, a transition, and a barrel some or all of which can be separably combined during assembly.

Abstract: A ball bat configured to allow the removal and replacement of a barrel assembly for enabling selection of a barrel having particular performance characteristics or if the barrel is damaged. The barrel assembly may be selectively changed to meet certain regulation requirements. A bat component can also include a ballast for selectively providing the ball bat with a particular weight. The ballast can be provided as a tube of thin film in the barrel assembly. The thin film ballast tube also forms a tamper resistant shield to inhibit modification of components inside the barrel section. One or more components of the ball bat can be provided as a kit. The kit may be a barrel assembly kit. The ball bat can be made by forming and assembling the components simply and inexpensively. Some or all of the components can be separably combined during assembly.