Half-moon nock vs TenPoint Alpha-Nock: specs compared
Updated 05 September 2026.
4
specs differ
Half-moon nock and TenPoint Alpha-Nock differ on 4 specs: nock, form, fits, compatibility rule.
| Spec | Half-moon nock | TenPoint Alpha-Nock |
|---|---|---|
| Nock | half-moon (moon) nock | Alpha-Nock / Alpha-Nock HP / HPX |
| Form | shallow concave groove across a flat disc; must be indexed to the string | deep bowstring channel with elongated ears, non-indexed |
| Fits | CenterPoint, most Barnett non-Hyper models, and many entry and mid crossbows | All 2019-and-newer TenPoint and Wicked Ridge crossbows; back-compatible into Horton |
| Compatibility rule | The groove must be indexed square to the string on every shot. If the odd-coloured (index) vane is not down, the string can sit on the rim of the nock and dry-fire the bow. | Required on all 2019-and-newer TenPoint and Wicked Ridge crossbows; fitting a flat or Omni-Nock instead voids the warranty and can let the string pass under the nock and simulate a dry-fire. |
Questions and answers
How do Half-moon nock and TenPoint Alpha-Nock compare?
Half-moon nock and TenPoint Alpha-Nock differ on 4 specs: nock, form, fits, compatibility rule.