If you’re chasing raw, consistent
damage in Borderlands 4, the G.M.R. Assault Rifle is one of
the most reliable and powerful legendary weapons you can find. While it may
look simple at first glance, its unique perk — “Big Name Hunter” — makes
it a top-tier choice for players running a kinetic weapon build.
This guide breaks down everything you need to know about the Borderlands 4 GMR, including where to find it, how to farm it efficiently, and how to maximize its potential in your build.
What Makes the G.M.R. So Good in Borderlands 4?
At first, the G.M.R. doesn’t
seem flashy — no elemental effects or alt-fire modes — but that’s what makes it
deadly. Its simplicity is backed by one of the strongest damage multipliers
in the game.
The weapon’s unique ability, “Big
Name Hunter,” doubles its damage when scoped in, effectively giving
it one of the highest DPS outputs among all kinetic assault rifles in Borderlands
4.
How to Get the G.M.R. Legendary Assault Rifle
Step 1: Unlock the Queen’s Cradle in Carcadia Burn
To start farming the G.M.R.
legendary, you’ll first need to reach the Queen’s Cradle area
located in Carcadia Burn. This area becomes accessible as you progress
through the campaign.
Step 2: Defeat “Driller Hole” in the Unpaid Tab
Quest
The G.M.R. is a rare drop
from the final boss, Driller Hole, encountered at the end of the “Unpaid
Tab” main story mission.
Once you complete the boss fight,
you’ll notice that the exit portal and entry room are close together —
making this one of the fastest farming loops in Borderlands 4.
Tip: A full farming run takes
about one minute with a decent build, so you can expect to find the
G.M.R. within an hour or less.
Step 3: Try Golden Caches or Shift Codes (Optional)
If you’re feeling lucky, you might
also obtain the G.M.R. from a Golden Cache. Keep an eye on new Shift
Codes from Gearbox — these can be redeemed for Golden Keys, giving
you additional chances to score this legendary rifle.
G.M.R. Unique Perk Explained — “Big Name Hunter”
The Big Name Hunter perk is
what makes the G.M.R. one of the best assault rifles in Borderlands 4.
|
Effect |
Description |
|
+100% Damage While Scoped |
Doubles the rifle’s damage output
when aiming down sights. |
|
−50% Fire Rate |
Slows the rate of fire, improving
recoil control. |
|
+100% Shot Cost |
Consumes two bullets per shot
while scoped. |
This perk creates a perfect balance
between precision and power — you’ll deal massive damage per shot
while still maintaining control. The reduced fire rate allows more accurate
aiming, which synergizes well with critical-hit builds.
How to Boost G.M.R. Damage Even Further
Even though the G.M.R. is
already powerful, you can push it even higher using the right Enhancements
and Class Mods. Here are the top recommendations:
Best Enhancements
- Jakobs Enhancement
– Combine with Bounce Pass and Piercer for bullet ricochet
and penetration.
- Penetrator Augment
– Increases bullet travel power and precision.
Recommended Class Mods
- Gun Damage Boost
- Assault Rifle Damage
- Kinetic Damage Increase
When combined, these buffs can make
the G.M.R. capable of shredding some of the strongest bosses in
Kairos — perfect for endgame content or Mayhem farming.
Pro Tip: Ammo Efficiency
While scoped in, the G.M.R. uses two bullets per shot, but as an Assault Rifle, it benefits from larger ammo reserves. You can easily sustain its firepower by upgrading your Storage Deck Unit (SDU) for Assault Rifle ammo.
The G.M.R. might look plain
compared to other flashy elemental guns, but don’t be fooled — its raw
damage output and consistency make it one of the best Assault Rifles in
Borderlands 4.
If you’re running a gun-focused
or kinetic build, this weapon is an absolute must-have. With the Big
Name Hunter perk, you’ll melt through enemies faster than ever.
So grab your rifle, head to Carcadia Burn, and start farming Driller Hole — your G.M.R. awaits.
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