Ordnance

Ordnance is the shared slot in Borderlands 4 for both grenades and heavy weapons. Weapons of this type have recharging ammo and cooldowns that can be affected by a player's skills, mods, and bonus stats from Enhancements, Class Mods, and Firmware.

Grenade Ordnance

See also: List of Grenade ordnance in Borderlands 4

Grenade ordnance has a limited number of charges, each representing a single throw.

Grenade Type

Each manufacturer has a single grenade type along with their distinctive trait:

Manufacturer	Grenade	Manufacturer Part (Trait)
Daedalus	Frag Grenade		Grenades cook while held, and explode after a set Duration
Jakobs	Throwing Knives		Grenades deal Critical Damage when hitting Weak Points
Maliwan	Plasma Grenade		Grenade stick to enemies, and any that land on the ground will Propel themselves at the nearest incoming enemy
Order	Seeker		Grenade home in on nearby enemies
Ripper	Reaver Grenade		Grenades teleport to their destination
Tediore	Satchel Charge		Double tap (ordnance key) to remotely detonate thrown Grenades
Torgue	EXPLODER		Grenade explode when impacting an enemy
Vladof	Impact Grenade		Grenade explode upon impact

Grenade Parts

Rarity

Grenade ordnance can have up to 3 Part slots, depending on their rarity:

Rarity	Max. # of Parts
Common	0
Uncommon	1
Rare	2
Epic	3
Legendary	2 + 1 Legendary part

Part List

Legend

• Augment — Complimentary parts that enhance Modifier parts or a grenade's Trait.
• Booster — Parts that boost grenades' stats.
• Modifier — Parts that modify grenades and replace their explosive function, or grant them extra functions.
• X — variable amount based on the player character's skills, a grenade's level, mods, and bonus stats from Enhancement, Class Mod, Firmware.

Group	Sub-group	Icon	Name	Effect
Artillery	Modifier		Artillery Payload	Fires bullets around the Grenade, dealing X Damage/s
	Augment		Duration Augment	Increases the Duration of the Artillery Grenade by +50%
			Ricochet Augment	Artillery Projectiles will bounce off of enemies, and Ricochet toward another nearby enemy
			Missiles Augment	Fires Micro-Missiles that home in on nearby enemies, each dealing X Damage
			Mortar Augment	Fires Mortars toward enemy positions, each dealing X Damage
Bounce	Modifier		Spring Payload	Bounces in place, exploding 3 additional times
	Augment		Apex Augment	Each Grenade also explodes at the apex of each bounce
			Spring Augment	MIRV Grenades bounce in place 3 times, exploding on each bounce
			Tightly Coiled Augment	Grenade bounces in place, exploding an additional +3 times
			Compounding Augment	With every bounce, Damage increases by +25% and Damage Radius by +13%
			Bouncer Augment	Each Grenade bounces toward nearby enemies
			Rubberized Augment	MIRV Grenades bounce up to 5 times before exploding
Damage	Booster		Explosive	Grenade Damage is increased by +20%
			Nuke	Grenade Damage is increased by +30%, Grenade Damage Radius is increased by +60%, and Grenade Cooldown Duration is increased by +25%
			Hazardous	Grenade Status Effect Chance is increased by +14% and Grenade Status Effect Damage is increased by +28%
			Exacting	Grenade has a 18/24% Chance to deal Critical Damage
			Merciless	Grenade Critical Damage is increased by +70%
Elemental	Modifier		Lingering Payload	Lashes out at 3 nearby enemies, dealing X Elemental Damage/s to each
				Spawns an elemental puddle that homes in, dealing X Elemental Damage/s
				Spawns 4 rotating beams, dealing X Elemental Damage/s
	Augment		Alchemic Augment	Grenade Status Effect Chance increased by +300%
			Fracture Augment	Spawns 3 Elemental Pillars in the direction the Grenade was thrown, each dealing X Damage
			Pulsing Augment	Radiates Elemental Pulses from the Grenade, each Pulse dealing X Damage
			Splat Pack Augment	Launches 3 Projeciles that each spawn an Elemental Puddle on landing
Homing	Modifier		Maglock Augment	Homes in on nearby enemies
	Augment		Wideload	Damage Radius increased by +45%, Homing Turn Rate reduced by −33%
Knife	Booster		Damage Amp Payload	Damage Taken by impacted target is increased by +15% for 10s
			Lethal	Grenade Damage is increased by +30%, and Grenade Projectile Speed is reduced by -50%
	Augment		Bouncing Blade Augment	Ricochets additional knives toward nearby enemies, dealing X Damage
		TBA	Penetrator Augment	Damage to the impacted target has a 30% chance to be Critical Hit for 5s
			Suppressor Augment	Damage Dealt by impacted target is reduced by -25% for 10s
Multiply	Modifier		Divider Payload	Spawns a second Grenade while midflight
			MIRV Payload	Spawns 4/6 MIRV Grenades on exploding
	Augment		Long Division Augment	Spawns another additional Grenade while midflight
			Micro MIRV Augment	MIRV Grenades each spawn 3 Micro MIRVs when they explode
			Tightly Packed Augment	Increases amount of MIRV Grenades spawned by +2
			Repeater Augment	Spawns additional Grenades downward while midflight
			Splinter Augment	Launches the second spawned Grenade toward an enemy
Multiply/ Singularity	Augment		Pulling Augment	Each Grenade spawns a Singularity
Singularity	Modifier		Singularity Payload	Spawns a Singularity that pulls in nearby enemies
	Augment		Gnawing Augment	Deals X Damage/s for the Duration of the Singularity
			Collapsing Augment	The Singularity pulls in enemies more rapidly, and with increased Force, within a large Radius
			Prolonged Augment	Increases the Duration of the Singularity Grenade by 50%
			Repulsor Augment	Upon exploding, pushes enemies away from the Singularity
Utility	Booster		Bloodthirsty	Grenade Lifesteal is increased by 16%
			Concussive	Knockback Force is increased by +70%
			Expansive	Grenade Damage Radius is increased by +30%
			Express	Grenade Cooldown Duration is reduced by -15%
			Overflow	Maximum Grenade Charge is increased by +1

Heavy Weapon Ordnance

See also: List of Heavy Weapon ordnance in Borderlands 4

Heavy weapons have limited ammo and a cooldown between uses based on how much of a magazine was used.

Rarity

Heavy Weapon ordnance can have up to 2 Part slots, depending on their rarity:

Rarity	# of Mods
Common	0
Uncommon	0
Rare	1
Epic	2
Legendary	1 unique mod

Types & Parts

There are eight kinds of heavy weapon ordnance, and all heavy weapons with the same model name have the same effects.

Each type of legendary heavy weapon is unique. For non-legendaries, every heavy weapon type has four possible parts with their own effects, and a model with none, models with one each, and models with each unique combination of two.

Manufacturer	Weapon Type	Icon	Name	Effect
Maliwan	Energy Orb		Aerodynamics	Projectile Speed is increased by +100%
			MIRV	Spawns 3 MIRV Orbs on explosion
			Proxy Homing	Homes in on a nearby target before exploding
			Two-Shot	Fires 2 Projectiles at a time
	Energy Bolt		Overload	Directly damaged enemies explode for additional Damage after a delay
			Penetration	Projectiles pierce through enemies
			Ricochet	Projectiles bounce off of surfaces
			Speed Loader	Fire Rate is increased by 30%
Ripper	Energy Beam		Beam Splitter	The beam splits to up to 2 other nearby targets
			Explosive	Damage splashes to other enemies near the target
			Heat Sink	Magazine Size increased by +25%
			Thermal Convection	Damage increases the longer the beam is fired
	Disc Launcher		Compound	Deals increased Damage per enemy hit
			Heat Exchange	Fires full auto after the initial charge.
			Ricochet	Projectiles bounce off of surfaces
			Wide Disk	Increases the Projectile width
Torgue	Rocket Launcher		Air Burst	Rockets explode when in proximity of an enemy
			Reticle Homing	Rocket homes in on the Reticle's target
			Shrapnel Rockets	On exploding, propels shrapnel forward
			Triple Barrel	Fires swirling Rockets, or charge up to fire all of them at once
	Rocket Pod		Extended Magazine	Magazine Size is increased by +25%
			Fire Rate	Fire Rate is increased by +30%
			Scanning	Rockets home toward nearby targets
			Two-Shot	Fires 2 Rockets at a time
Vladof	Autocannon		Additional Barrels	Adds 2 additional barrels, increasing Fire Rate by +28% or +56%
			Explosive Rounds	Increases Damage by +125% and Damage Radius by +200%
			Penetration	Projectiles pierce through enemies
			Two-Shot	2 barrels fire simultaneously
	Gatling Gun		Additional Barrel	Adds 1 additional barrel, increasing Fire Rate by +49% or +56%
			Angel's Share	Every 6th shot doesn't cost Ammo
			Devil's Share	Every 6th shot deals +100% Damage
			Magic Bullet	Every 6th shot is homing

Naming Conventions

Certain classes of common heavy weapons are named thematically by the manufacturer.

• Maliwan energy bolt weapons have names inspired by science fiction, like the Cesium Spool, or directly lifted from actual scifi works, like the C-Beam, a reference to the famous soliloquy from Blade Runner, and the Muon Lance, a weapon name that has been used in multiple sci-fi franchises.
• Maliwan weapons that fire energy orbs are named after storm-related weather terminology. Examples are Eyewall, Galeforce, and Supercell.
• Ripper disc-launchers are named for tools related to cutting and sanding, as in Adze, Drawshave, and Rasp.
• Ripper weapons that project a continuous energy beam are named for terms related to divination. Some examples are Auspex, Oracle, and Prophecy.
• Torgue rocket launchers and rocket pods are named with two words that rhyme or alliterate, like Litter Spitter, Naughty Nelly, and Peek Seeker.
• Vladof autocannons are named after Russian words for kinds of birds, for example Golub (rus. голубь; pigeon), Petuch (rus. петух; rooster) and Soroka (rus. соро́ка; magpie).
• Vladof gatling guns have names related to foundries, such as Bloomery, Boiler, and Smeltmill.