Build it if you already have it or don’t mind the Sisters of Parvos grind: 28% crit chance, 30% status chance, and a 2.2x multiplier on an 80-round mag give it a hybrid statline that rarely needs a reload. The weakness is a sluggish 5 rounds/sec base fire rate, slower than most other Tenet and Kuva primaries.
Alt-fire dumps the remaining magazine into one Blast grenade that explodes in an 8m radius on impact. Damage scales with rounds left in the mag, so fire it on a full or near-full clip, not near-empty.
Tenet Tetra is the Sisters of Parvos remaster of the clantech Tetra, an automatic Puncture rifle with a magazine-dump grenade alt-fire, and it stays relevant in 2026 for its hybrid statline of 28% crit chance, 30% status chance, and a 2.2x multiplier on an 80-round mag.
How to get the Tenet Tetra
- Spawn a Kuva Lich by letting a Kuva Thrall kill you on a Kuva Fortress or Grineer mission, then track and confront it.
- Check in-game whether that Lich can roll as a Sister of Parvos instead of a standard Lich (tied to your story progress including Vox Solaris), since Tenet weapons only drop from Sisters.
- Farm Requiem Mods from Void Fissure missions and use the murmur system (killing thralls, checking Lich/Sister influenced missions) to learn the correct Requiem sequence.
- Equip the sequence on your Parazon and confront the Sister. A correct sequence lets you Vanquish her, a wrong one strengthens her and you try again next encounter.
- Vanquish the Sister to send her weapon to your Foundry, then claim it there. Any Tenet weapon can spawn on any Sister, so repeat with new Sisters until a Tenet Tetra shows up if you do not want to trade.
- Alternative: trade an un-vanquished Sister already carrying a Tenet Tetra with another player in the Dojo’s Crimson Branch, then vanquish it yourself to claim the weapon.
The weapon itself cannot be traded once claimed, only an un-vanquished Sister carrying it can change hands, and the recipient still has to land the kill personally.
Stats
| Class | Primary |
|---|---|
| Mastery Rank | 16 |
| Trigger | AUTO |
| Noise | Alarming |
| Fire Rate | 5 |
| Accuracy | 18.2 |
| Magazine | 80 |
| Reload | 2.2 s |
| Critical Chance | 28% |
| Critical Multiplier | 2.2x |
| Status Chance | 30% |
| Riven Disposition | (1.25) |
| Damage | 60 total |
|---|---|
| Impact | 13.2 |
| Puncture | 33.6 |
| Slash | 13.2 |
Riven disposition is 1.25 (roughly 4 of 5 dots), a middling value, so only chase one if you already like the playstyle since a riven mostly patches the slow fire rate rather than raising the damage ceiling.
Builds
This Tenet Tetra build is a hybrid crit-status setup, using Point Strike and Vital Sense to boost crits into real damage while Hunter Munitions, Rime Rounds, and Malignant Force lean into its 30% status base. Rime Rounds and Malignant Force combine Cold and Toxin into Viral, letting Tetra’s primary fire and lingering charged field shred Corpus shields and armor alike.
14Serration
Rifle
15Split Chamber
Rifle
9Point Strike
Rifle
9Vital SenseRifle
9Hunter MunitionsSET: PRIMARY
7Rime RoundsRifle
7Malignant ForceRifle
9Vigilante Armaments
SET: PRIMARY| Mod | Why it’s here |
|---|---|
| Serration | Flat base damage increase that scales every crit and status tick Tetra’s primary fire lands. |
| Split Chamber | Extra pellets multiply both crit rolls and status proc chances on Tetra’s fast-firing burst. |
| Point Strike | Pushes Tetra’s already solid 28% crit chance into a reliably high roll. |
| Vital Sense | Multiplies crit damage once Point Strike is landing crits consistently. |
| Hunter Munitions | Tetra’s 30% status base means frequent crits also trigger bonus slash procs, doubling down on its hybrid profile. |
| Rime Rounds | Adds Cold damage plus extra status chance, half of the Viral pairing to strip Corpus shields. |
| Malignant Force | Adds Toxin damage plus status chance, completing Viral with Rime Rounds to bypass shields and hit health. |
| Vigilante Armaments | Extra status chance and minor multishot keep both crit and status rolling on Tetra’s primary fire and lingering charged alt-fire field. |
Primary Merciless is the top pick since it stacks crit damage into the 2.2x multiplier, Primary Deadhead is a strong weakpoint alternative that turns headshots into temporary crit chance, and without an arcane adapter, Galvanized mods are the cheaper investment instead of the arcane slot.
Reviewed September 2026.
Pros and Cons
Pros
- True crit/status hybrid stats (28%/30%) that support multiple build styles
- Strong 2.2x crit multiplier for an automatic rifle
- 80-round magazine rarely forces a mid-fight reload
- Alt-fire grenade doubles as an 8m AoE panic button or finisher
- Free byproduct of Sisters of Parvos farming, no separate relic grind
Cons
- 5 rounds/sec base fire rate feels slow next to faster Tenet and Kuva primaries
- Puncture-heavy IPS split makes the natural slash/bleed path weak, you have to build around it with Viral and Heat
- Alt-fire empties the whole magazine at once, leaving you dry right after
- Only obtainable through Sister of Parvos RNG, no direct farm or Varzia purchase
This is for players who want an automatic rifle with a hybrid crit/status statline and don’t mind the Sisters of Parvos grind to get it.