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Borderlands 4 Murmur Review — Legendary Assault Rifle

Published: 8/15/2026 · Updated: 11/15/2026 · As of 2026-07

RarityLegendary
TypeAssault Rifle
ManufacturerTediore
Drop sourceHorrors of Kairos mini‑event (World Boss drop, 2025-10-23 to 2025-11-06) / thereafter a low‑chance drop from the regular AR pool.
Red Text
Did you hear something?

This review was machine-translated from the Japanese original. Numbers are checked against the original; if the wording reads oddly, the Japanese version is authoritative.

A Tediore-made assault rifle “stop-only” that always lands a critical on dying enemies (under 35% health). It has higher base damage than previous Tediore weapons, and pierces bosses whose health has been reduced. It appeared as a single unit in the Halloween Horrors of Kairos event.

🧩 Red text source “Did you hear something?” is a wordplay on the weapon name “Murmur”. A faint sound = murmur, picked up by “Did you hear?” making a pun directly tied to the name. Primary source confirming it as a quote from a specific work is unverified (the external original source is (unverified)).

What kind of assault rifle? (Beginner’s perspective)

Unique effect (mechanics)

Executor: Enemies with health under 35% receive a guaranteed critical hit.

Drop farming

Drop sourceChanceNotes
Horrors of Kairos Mini Event (World Boss)(unverified)2025-10-23~11-06 Halloween event. Afterwards it is thought to be low chance from the normal AR loot pool (unverified)

Build compatibility

Vault HunterCompatibilityNote
Rafa⭐⭐⭐Boss shredding → finish with guaranteed crit
Vex⭐⭐⭐Quickly finish below 35% with high fire rate
Amon⭐⭐⭐General use
C4SH⭐⭐⭐General use

Summary

FAQ

What is Murmur's unique effect?

Executor: Guarantees a critical hit on enemies below 35% health (i.e., makes it easy to finish weakened foes in one shot). Deals significantly higher damage than previous Tediore weapons, making it strong in boss fights.

Where can I obtain Murmur?

From the Horrors of Kairos mini‑event (World Boss drop, 2025-10-23 to 2025-11-06) / thereafter it drops at low chance from the normal AR route.