- bowwwl
- Bowling Ball Database
- Pyramid
- Coverstocks
- GPS Navigational ATX-XX
GPS Navigational ATX-XX
Type
              Solid Reactive
          Balls with the Pyramid GPS Navigational ATX-XX Coverstock
| Ball | Release Date Sort ascending | Core | RG | Diff | MB Diff | US/Overseas Release | Discontinued | |
|---|---|---|---|---|---|---|---|---|
|   | Fortress Endgame | SG 19.5 AIAsymmetric | 2.473 | 0.051 | 0.023 | |||
|   | Fortress Solid | SG 10.5 PortalAsymmetric | 2.533 | 0.050 | 0.023 |