Kuva Tonkor removes the base Tonkor’s minimum arming distance, so grenades detonate on contact even point-blank, and that reliable AoE plus a 30 percent crit chance at 2.5x keep it in A-tier through 2026. The biggest strength is guaranteed-detonation area damage that clears a room in one shot without needing distance; the real weakness is a one-round magazine that forces a reload after every single shot. Build it, it remains one of the stronger Kuva primaries.
Grenades explode the instant they hit anything, even point-blank, unlike the base Tonkor which needs distance to arm. This lets it be used as a close-range weapon but can self-stagger the user without Cautious Shot equipped.
Kuva Tonkor is the Kuva Lich variant of the Tonkor grenade launcher, trading the base weapon’s minimum arming distance for point-blank detonation plus a stat bump across crit chance, status chance, and reserve ammo.
It stays in the primary conversation through 2026 because each single-round shot carries a 733 total damage explosion that spreads Blast, Puncture, and Slash damage across a 7 meter radius, one-shotting most Steel Path trash and chunking tougher targets, with Hunter Munitions turning its 30 percent crit chance into extra Slash procs.
How to get the Kuva Tonkor
- Finish The War Within and reach Mastery Rank 5.
- Run any Grineer mission at level 20 or higher. When the lights flicker yellow, kill fast and a Kuva Larvling drops.
- Walk up to the Larvling and read the weapon it shows. If it is not the Kuva Tonkor, leave it alive and run another mission.
- Mercy-kill it with the Warframe whose progenitor element you want; that frame sets the bonus element on the weapon.
- Hunt the Lich: clear its nodes for Requiem murmurs, stab it with the Requiem mods in the right order, and vanquish it in the Railjack showdown on Saturn Proxima.
- The Kuva Tonkor lands in your Foundry inbox with a 25 to 60 percent bonus of that element.
Fuse a second copy with Valence Fusion to push the bonus to 60 percent and choose the element you keep. Converted Liches trade in a Clan Dojo, so a Toxin or Magnetic copy can be bought. Rank 40 with five Forma.
Stats
| Class | Primary |
|---|---|
| Mastery Rank | 13 |
| Trigger | SEMI |
| Noise | Alarming |
| Fire Rate | 3.17 |
| Accuracy | 100 |
| Magazine | 1 |
| Reload | 1.5 s |
| Critical Chance | 30% |
| Critical Multiplier | 2.5x |
| Status Chance | 17% |
| Riven Disposition | (0.9) |
| Damage | 733 total |
|---|---|
| Puncture | 227 |
| Slash | 204 |
| Blast | 302 |
Riven disposition is 0.90, middle of the pack for Kuva primaries. Since the weapon already hits hard from base stats, a riven is a nice bonus rather than a requirement.
Builds
The standard 2026 build leans into the 30 percent crit chance with Point Strike, Vital Sense, and Hunter Munitions to convert crits into guaranteed Slash procs, stacked on Serration, Split Chamber, and Galvanized Chamber for raw damage and status-scaling multishot. Primed Firestorm widens the explosion’s radius for more room-clearing coverage per shot, since only one grenade fires per magazine, so reload speed matters more than fire rate here.
Rifle
Rifle
Rifle
Rifle
SET: PRIMARY
Rifle
Rifle
Rifle| Mod | Why it’s here |
|---|---|
| Serration | Flat plus 165 percent rifle damage at max rank, the base multiplier for the build. |
| Split Chamber | Adds multishot, a second grenade instance from a single round without an extra reload. |
| Point Strike | Raises critical chance to feed Hunter Munitions procs more reliably. |
| Vital Sense | Raises critical damage, scaling every crit off the 30 percent base chance. |
| Hunter Munitions | Converts critical hits into a chance to inflict a guaranteed Slash proc on top of the explosion. |
| Primed Cryo Rounds | Adds Cold damage, the other half of the Viral combo alongside a Toxin progenitor bonus. |
| Galvanized Chamber | Adds multishot, and every kill stacks more multishot for a while. |
| Primed Firestorm | Increases the blast radius of the grenade’s explosion, covering more ground per shot. |
Primary Merciless is the top pick, stacking bonus primary damage per kill up to 12 times, which fits a weapon that already clears groups in one shot. Primary Crux is a cheaper, easier-to-farm alternative, building stacking status chance and ammo efficiency off weak point hits instead.
Reviewed September 2026.
Pros and Cons
Pros
- Grenades detonate on contact at any range, no minimum arming distance to work around
- High crit chance (30 percent) and multiplier (2.5x) support a real Hunter Munitions build
- 733 total damage with a 7 meter Blast, Puncture, and Slash explosion clears groups in one shot
- Large ammo reserve (30, plus 3 per pickup) for a launcher-class weapon
Cons
- Single-round magazine forces a 1.5 second reload after every shot
- Point-blank kills can self-stagger the user without Cautious Shot equipped
- Fire rate mods do little since only one grenade fires per magazine; reload speed matters more
Kuva Tonkor suits players who want a primary that trades sustained fire for one huge hit per trigger pull, and it holds up as a strong Steel Path pick without needing a riven.