Bolts for the TenPoint Viper 430: 20 in arrow, TenPoint Alpha-Nock, minimum 410 gr, the weight of the shipped Pro Elite 400 arrow (TenPoint does not publish a separate lower floor). Speed 430 fps with the factory 410-grain Pro Elite 400 carbon arrow. The bolt length, nock and grain floor, and the dry-fire trap.
Updated 12 September 2026.
The right bolt for the TenPoint Viper 430
The correct bolt length, nock and minimum grain weight for the TenPoint Viper 430, and what stops a dry-fire.
| Bolt length | 20 in |
|---|---|
| Required nock | Alpha-Nock HP |
| Factory arrow | Pro Elite 400, 410 gr, Alpha-Nock HP |
| Rated speed | 430 fps (410 gr Pro Elite 400) |
| Minimum total grain | 410 gr, the weight of the shipped Pro Elite 400 arrow (TenPoint does not publish a separate lower floor) |
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The Viper 430 shoots the 20-inch Pro Elite 400 carbon arrow at 430 fps with an Alpha-Nock HP. It is a current TenPoint, so the Alpha-Nock requirement applies.
Keep the 20-inch Pro Elite 400 and its Alpha-Nock HP. Fitting an older Omni or a flat nock voids the warranty and risks a dry-fire.