Build it. Trumna Prime is a powerful heavy assault rifle with excellent area-of-effect capabilities from both its primary and alternate fire modes. Its main weakness is self-stagger from explosions, which requires careful modding or playstyle adjustments.
Primary fire rounds explode in a 1.6m radius. Alternate fire launches a grenade that bounces up to 7 times and explodes in a 6m radius. All explosions penetrate walls and apply status separately.
Trumna Prime is the Primed version of the Trumna heavy assault rifle, released alongside Xaku Prime and Quassus Prime. It boasts improved damage, critical multiplier, status chance, magazine size, and reload speed over its base counterpart.
This weapon deals primarily Heat and Impact damage, making it inherently capable of applying Heat procs. Its signature mechanic involves explosive rounds for both its primary and alternate fire modes, providing significant area denial and crowd control.
The alternate fire grenade is particularly potent, bouncing multiple times and exploding with a larger radius, allowing for damage around corners and through cover.
How to get the Trumna Prime
- The Trumna Prime is dropping right now. Its relics are in the mission drop tables:
- Receiver: Neo T11 (dropping now; the rare slot in Neo T11).
- Blueprint: Lith K12, Meso V15, Neo Y1 (dropping now).
- Barrel: Lith T14, Axi T13 (dropping now; the rare slot in Lith T14, Axi T13).
- Stock: Meso L5 (dropping now).
- Run the fissure tier that matches each relic, refine the rare part’s relic to Radiant, and pick the best of the four results with a squad.
- Build the parts, then the weapon: 12 hours each, or rush with platinum.
Check the Relic finder for live odds per refinement; the set price on this page is what the built set trades for on warframe.market.
Stats
| Class | Primary |
|---|---|
| Mastery Rank | 15 |
| Trigger | AUTO |
| Noise | Alarming |
| Fire Rate | 4.67 |
| Accuracy | 200 |
| Magazine | 250 |
| Reload | 4 s |
| Critical Chance | 24% |
| Critical Multiplier | 2.4x |
| Status Chance | 34% |
| Set Price | 22p on warframe.market (48h average) |
| Riven Disposition | (0.65) |
| Damage | 85 total |
|---|---|
| Impact | 32 |
| Heat | 53 |
With a riven disposition of 0.65, Trumna Prime has a low disposition, meaning Riven mods will provide smaller stat bonuses. This indicates the weapon is already considered strong without significant Riven boosts.
Builds
Given its balanced critical chance and high status chance, a hybrid build focusing on both critical hits and status effects is ideal. The innate Heat damage synergizes well with Viral for a powerful combination. Prioritize increasing overall damage, critical stats, and multishot to maximize both direct hit and explosion damage.


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SET: PRIMARY


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| Mod | Why it’s here |
|---|---|
| Serration | +165% Damage |
| Split Chamber | +90% Multishot |
| Critical Delay | +200% Critical Chance; -20% Fire Rate (x2 for Bows) |
| Point Strike | +150% Critical Chance |
| Galvanized Hell | +110% Multishot; On Kill: +30% Multishot for 20s. Stacks up to 4x. |
| Vigilante Armaments | +60% Multishot |
| Malignant Force | +60% Toxin; +60% Status Chance |
| Rime Rounds | +60% Cold; +60% Status Chance |
Primary Merciless is the pick: stacking damage on kills with faster reloads. Primary Deadhead if you land headshots. Primary Crux, from The Hex, is the cheap start.
Reviewed September 2026.
Pros and Cons
Pros
- High base damage and critical multiplier.
- Excellent area-of-effect capabilities from both fire modes.
- Explosions penetrate walls and do not require line of sight.
- High status chance allows for reliable status application.
- Innate Heat damage is effective against many enemy types.
Cons
- All explosions inflict self-stagger.
- High initial recoil.
- Cannot equip Tactical Reload.
- Explosions have damage falloff and cannot trigger headshot conditions.
Trumna Prime is a formidable primary weapon for players who enjoy explosive combat and area denial. Its ability to hit enemies through cover and apply status effects widely makes it effective in various mission types. Managing its self-stagger is key to maximizing its potential, often through mods like Cautious Shot or specific Warframe abilities.