Hitting an enemy with a Stage 2 Beam inflicts Void Gaze on the target.
Hitting an enemy with a Stage 3 Beam inflicts Appalled Calling on the target. This effect is considered to be the same effect as Frostbite in some modes.

Aiming activates Preview Mode.
Canceling aiming, deactivates Preview Mode.
When firing while aiming, deploys up to 3 units of the unique ability Guardian Lance on the terrain and consumes a set amount of ammo upon deployment.
The deployed Guardian Lances last for a set amount of time, and each Guardian Lance deals damage to nearby enemies at fixed intervals.
Each time a deployed Guardian Lance is hit, its duration and range are slightly increased.

On hitting an enemy, procs Bombardment on the enemy's location with a set chance.
 Inflicts Burn on enemies hit by Bombardment.

When using a Dimension skill, recovers Custom Resource with a set chance.
When using a Tech skill, grants the unique ability Pest Control with a set chance.

Granting a buff to allies excluding yourself will grant the unique effectMeditation to yourself.
Recovering an ally's (HP/Shield/MP/Custom Resources), excluding yourself, will grant the unique effectPraise to yourself.
Inflicting a debuff on an enemy will grant the unique effectGlory to yourself.

Hitting an enemy grants the unique effect Voltage Charge.
When Voltage Charge reaches max stacks, it changes to the unique effect Energy Grenade.
While Energy Grenade is active, fires an Energy Grenade when shooting while aiming, which deals increased damage based on the number of stacks. Hitting an enemy with the Energy Grenade inflicts Voltage Accumulation.

On hitting a Poisoned enemy, increase Firearm ATK and apply this buff to the attack. 
On defeating a Poisoned enemy, the defeated enemy will trigger an Explosion with a certain chance, inflicting additional damage to nearby enemies. Inflicts Poison on enemies damaged by this explosion.

Reloading randomly grants one of four Unique Ability effects, which changes in the following order while the effect is active.
Exploding Ecstasy causes a Fire Burst at the hit location.
Restrained Dispassion causes a Frosty Burst at the hit location and inflicts Frostbite.
Pulsing Shock inflicts an Electric shock on nearby targets.
Endless Indulgence spawns a Puddle of Indulgence at the hit location and inflicts Poison.

Defeating an enemy grants the Unique Ability Patience. 
On hitting an enemy while at Max Stacks, fires Enhanced Rounds.
On hitting an enemy with Enhanced Rounds, Patience is reset, and inflicts Stun on the enemies.

On hit, inflicts Mark on the enemy. On hitting an enemy inflicted with Mark, increases Critical Hit Rate and applies this buff to the attack.
Each Critical Hit ricochets to the nearby enemy with the highest remaining HP ratio, Stunning the enemies hit by the ricochet.
Continued fire grants the Horseshoe effect.

On hitting an enemy, increase Status Effect Trigger Rate corresponding to the element (Fire/Chill/Electric/Toxic) and inflicts the unique ability Quenching to the target enemy. 
On hitting a Burned enemy, increase Firearm ATK and apply this buff to the attack.

On hitting a Weak Point, inflicts the unique ability Prey on the target enemy.

When defeating an enemy, the defeated enemy has a set chance to discharge Electric Shockwave which deals Additional Damage to nearby enemies.

On hitting an enemy's Weak Point, inflicts the unique ability Devotion Mark on the target enemy.
On hitting an ally, that ally's shield is restored at the cost of your MP. If your current MP is less than the MP cost, this effect is not triggered.

When using a Dimension or Fusion skill, grants the unique ability Single Reload for Peace.
When Single Reload for Peace is at Max Stacks, shooting while aiming rapidly fires all loaded rounds.

Critical Hits or hits on a Weak Point spawn Explosive Scanners.
Explosive Scanners explode on contact with the terrain and inflict Detect on enemies within the explosion range.

When using a Fusion skill, grants self the unique ability Arcane Energy with a set chance.
When using a Singular skill, grants self the unique ability Purification with a set chance.

On landing a Critical Hit on an enemy at a certain distance, the unique ability Cold Surveillance is applied to the target.
Hitting the Weak Point of an enemy at a certain distance grants self the unique effect Subzero Sensation.
Defeating an enemy grants self the unique effect Chill Synchronization.
While Chill Synchronization is active, ignores the Movement Speed reduction by Hailey's Cold Fury.

After reloading, grants the unique ability Solar Halo.
 While Solar Halo is active, hitting an enemy spawns Dusk at the spot. Inflicts Lunar Halo on the enemies hit by Dusk.

Fires a Guided Round with a set chance.
On hitting an enemy with a Guided Round, inflicts Ancient Fire to the target enemy with a set chance.

Fires a Sticky Bomb when shooting while aiming.
The launched bomb will automatically detonate after a certain period of time after sticking to an enemy. When aim is canceled, all attached bombs will detonate at the same time, regardless of whether the countdown has been completed.
Upon detonation, Sticky Bombs will inflict Burn on damaged enemies.

On hitting the enemy with all bullets, grants the unique ability Executor's Exaltation.
At the highest stage, increases Weak Point Damage on hit and inflicts Electrocution on the target enemy.

On hitting the enemy with all fired bullets, increases the Firearm Critical Hit Rate and Firearm Critical Hit Damage of the attack.
Upon landing a Critical Hit on an enemy, grants the Firearm's unique ability Amplification.

On hitting a Weak Point, inflicts the unique effect, Death Propagation. 
On hitting an enemy Commander or Colossus, increases Firearm Critical Hit Rate and applies the effect to the attack.

On hitting a Weak Point, inflicts Dispel on the enemy with a set chance.
When two or more enemies are hit by a single shot, there is a high chance to land a Critical Hit on the enemies while also increasing Critical Hit Damage and applying this buff to the attack.