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Grattler
Warframe · Equipment

Grattler

Automatic explosive Arch-Gun

Released Jul 31, 2015

Grattler fires projectiles with separate impact and Blast explosion components. It has automatic fire, 30 rounds, and a mastery requirement of 4.

TypeArch-GunMastery requirement4Critical chance25%Critical multiplier2
Grattler GUIDE

Understand Grattler

Useful when…

  • Automatic explosive fire in Archwing combat.
  • Using its projectile and explosion components while accounting for projectile travel and explosion falloff.

Projectile impact and explosion

The weapon fires at about 6.25 shots per second. Each listed projectile impact deals 15 Impact, 15 Slash, and 120 Puncture; its separate explosion deals 205 Blast. Both attack entries list 25% critical chance, a 2× multiplier, and 25% status chance. The explosion’s falloff ends at 9 metres, with 70% reduction at that endpoint.

Handling

Grattler is automatic, with a 30-round magazine and 4-second reload. Its accuracy is listed as about 16.7, and its projectile speed is 250. The base polarity is Madurai. Its attack entries describe separate impact and explosion components, not two selectable firing modes.

Related weapons

Grattler requires mastery rank 4, compared with rank 13 for Kuva Ayanga. Kuva Grattler retains the explosive-shell concept and is described as reaching maximum fire rate instantaneously. Larkspur’s weapon description calls its normal attack a wild initial attack that locks on to a target and chains to nearby targets; it also has an explosive projectile mode. These descriptions indicate different attack patterns, not a universal performance ranking.

Limitations and tradeoffs

  • Accuracy is listed as about 16.7.
  • The projectile has travel time.
  • Explosion damage falls off to a listed 70% reduction at its 9-metre falloff endpoint.

Common mistakes to avoid

  • Treating impact and explosion as one attack with identical behavior.
  • Treating the 9-metre falloff endpoint as a discrete blast radius.
  • Assuming Larkspur’s described lock-on behavior establishes reliable precision or a specific target-selection mechanic.

Effects and reference details

Detailed properties

Critical chance25%
Critical multiplier2×
Status chance25%
Listed attack rate6.25
Accuracy16.67
TriggerAuto
Magazine size30
Reload time4 seconds
Multishot1
Foundry Credits65,000
Foundry time24 hours

Attack modes

ModeCritical chanceCritical multiplierStatus chanceDamage types
Projectile Impact25%2×25%impact: 15, slash: 15, puncture: 120
Explosion25%2×25%blast: 205

Each mode has its own properties. Alternate forms may require additional unlocks; these values are not combined build damage.

References and version

Game data version: Pinned public export

Grattler — WARFRAME Wiki ↗
Technical source data for verification

These machine-readable game records support the calculations and factual checks. The wiki references above are intended for reading.

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