Best Build and Armor for Heavy Bowgun

Weapon			Mods
Greifen (Artian)			Element Ammo Powder Ignition Mod
Attack		Affinity		Defense
330		5%		0
Decoration		Blaze-Precise Jewel 3 Bandolier-Precise Jewel 3 Crit Element-Precise Jewel 3
Special Ammo		Wyvernheart Ignition Wyverncounter Ignition
Ignition/Type		Ignition Gauge Recovery Lv1 Ignition Mode ST II
Element Type		Fire Element Type x3
Production		Attack Infusion x3
Reinforcement		Attack Boost x3 Capacity Boost x2

This is an equipment setup for the Artian Heavy Bowgun using Flaming Ammo. Even when conditions are optimal, the maximum Affinity caps at 75%, so to ensure stable damage without relying on critical hits, Attack is boosted with bonuses. While the Reinforcement Bonus can be adjusted to increase Affinity instead of Attack, make sure to at least get Capacity Boost x2.

Weapon			Mods
Greifen (Artian)			Element Ammo Powder Ignition Mod
Attack		Affinity		Defense
330		5%		0
Decoration		Stream-Precise Jewel 3 Bandolier-Precise Jewel 3 Crit Element-Precise Jewel 3
Special Ammo		Wyvernheart Ignition Wyverncounter Ignition
Ignition/Type		Ignition Gauge Recovery Lv1 Ignition Mode ST II
Element Type		Water Element Type x3
Production		Attack Infusion x3
Reinforcement		Attack Boost x3 Capacity Boost x2

This equipment setup for the Artian Heavy Bowgun is designed for Water Ammo. Even under optimal conditions, the maximum Affinity is capped at 75%. To ensure stable damage without relying on critical hits, Attack is boosted with bonuses. While the Reinforcement Bonus can be adjusted to focus on Affinity instead of Attack, make sure to at least get Capacity Boost x2.

Weapon			Mods
Greifen (Artian)			Element Ammo Powder Ignition Mod
Attack		Affinity		Defense
330		5%		0
Decoration		Bolt-Precise Jewel 3 Bandolier-Precise Jewel 3 Crit Element-Precise Jewel 3
Special Ammo		Wyvernheart Ignition Wyverncounter Ignition
Ignition/Type		Ignition Gauge Recovery Lv1 Ignition Mode ST II
Element Type		Thunder Element Type x3
Production		Attack Infusion x3
Reinforcement		Attack Boost x3 Capacity Boost x2

This equipment setup for the Artian Heavy Bowgun is designed for Thunder Ammo. Even under optimal conditions, the maximum Affinity is capped at 75%. To ensure stable damage without relying on critical hits, Attack is boosted with bonuses. While the Reinforcement Bonus can be adjusted to focus on Affinity instead of Attack, make sure to at least secure Capacity Boost x2.

Weapon			Mods
Greifen (Artian)			Element Ammo Powder Ignition Mod
Attack		Affinity		Defense
330		5%		0
Decoration		Frost-Precise Jewel 3 Bandolier-Precise Jewel 3 Crit Element-Precise Jewel 3
Special Ammo		Wyvernheart Ignition Wyverncounter Ignition
Ignition/Type		Ignition Gauge Recovery Lv1 Ignition Mode ST II
Element Type		Ice Element Type x3
Production		Attack Infusion x3
Reinforcement		Attack Boost x3 Capacity Boost x2

This equipment setup for the Artian Heavy Bowgun is designed for Freeze Ammo. Even under optimal conditions, the maximum Affinity is capped at 75%. To ensure stable damage without relying on critical hits, Attack is boosted with bonuses. While the Reinforcement Bonus can be adjusted to focus on Affinity instead of Attack, make sure to at least secure Capacity Boost x2.

Weapon Name			Mods
Abaddonian Muneo			Elemental Boost Magazine Ignition Recover Mods
Attack		Critical		Defense
345		-15%		0
Weapon Skill		Opening Shot Lv3
Special Ammo		Wyvernheart Ignition Wyverncounter Ignition
Ignition/Type		Ignition Gauge Recovery Lv2 Standard Mode ST I
Decoration		Blaze-Bandolier Jewel 3 Bandolier Jewel II 2 Trueshot Jewel 1

Heavy Bowgun's forgeable Fire Element equipment uses Nu Udra weapons. Since the weapon has a negative 15% Affinity, it only goes up to 67%, but you can also change the weapon's No.1 slot to Crit Element Jewel 1 to raise it even slightly.

Weapon name			Mods
Dalgap-of-the-Waves			Elemental Boost Magazine Elemental Boost Magazine
Attack		Critical		Defense
360		-15%		0
Weapon Skill		Tetrad Shot Lv3
Special Ammo		Wyvernheart Ignition Wyverncounter Ignition
Ignition/Type		Ignition Gauge Recovery Lv2 Normal/Ignition Mode Basic Type
Decoration		Stream/Opener Jwl 3 Opener Jewel II 2 Trueshot Jewel 1

Heavy Bowgun's forgeable Water Element equipment uses Nu Udra weapons. Since the weapon has a negative 15% Affinity, it only goes up to 52%, but you can also change the weapon's No.1 slot to Crit Element Jewel 1 to raise it even slightly.

Weapon Name			Mods
Fulgurblast Guardiana			Elemental Ammo Powder Elemental Boost Magazine
Attack		Critical		Defense
315		15%		0
Weapon Skill		Critical Element Lv3
Special Ammo		Wyvernheart Ignition Wyverncounter Ignition
Ignition/Type		Ignition Gauge Recovery Lv2 Normal/Ignition Mode Basic Type
Decoration		Bolt-Bandolier Jewel 3 Bandolier Jewel II 2 Trueshot Jewel 1

Heavy Bowgun's forgeable Thunder Element equipment uses Guardian Fulgur weapons. You can hold 8 rounds with the Thunder Ammo, Affinity is 15%, and the weapon skill is Critical Element, so it won't let you down. Furthermore, since it can also shoot Paralysis Ammo, it is also possible to support others in multiplayer.

Weapon Name			Mods
Steel Assault			Elemental Ammo Powder Ignition Recover Mods
Attack		Critical		Defense
330		0%		0
Weapon Skill		Tetrad Shot Lv3
Special Ammo		Wyvernheart Ignition Wyverncounter Ignition
Ignition/Type		Ignition Gauge Recovery Lv2 Standard Mode ST I
Decoration		Frost-Opener Jewel 3 Opener Jewel II 2 Trueshot Jewel 1

Heavy Bowgun's forgeable Ice Element equipment uses Steel Assault. Steel Assault has the highest attack stats among the forgeable weapons that can shoot Freeze Ammo, can hold 7 rounds of Freeze Ammo, and its weapon skill is Tetrad Shot, making it a powerful weapon.

Weapon			Mods
Greifen (Artian)			Normal Ammo Magazine Normal Ammo Powder
Attack		Affinity		Defense
330		5%		0
Decoration		Forceshot Jewel 3 Bandolier-Precise Jewel 3 Opener-Precise Jewel 3
Special Ammo		Wyvernheart Ignition Wyverncounter Ignition
Ignition/Type		Ignition Gauge Recovery Lv1 Ignition Mode ST I
Element Type		Paralysis Element Type x3
Production		Attack Infusion x3
Reinforcement		Attack Boost x3 Capacity Boost x2

This is the recommended best equipment using the Artian weapon for the Heavy Bowgun with Normal Ammo. Since Normal Ammo can only shoot 2 rounds by default, make sure to get at least Capacity Boost x2. Not only can it shoot Normal Ammo, but it can also fire Paralysis Ammo Lv2, providing great crowd control capability in multiplayer. The Sheath Jewel slot is flexible, so you can replace it with something like Medicine Jewel 1 without any issues.

Weapon			Mods
Greifen (Artian)			Pierce Ammo Magazine Pierce Ammo Powder
Attack		Affinity		Defense
330		5%		0
Decoration		Pierce Jewel 3
Special Ammo		Wyvernheart Ignition Wyverncounter Ignition
Ignition/Type		Ignition Gauge Recovery Lv1 Ignition Mode ST I
Element Type		Paralysis Element Type x3
Production		Attack Infusion x3
Reinforcement		Attack Boost x3 Capacity Boost x2

This is the recommended best equipment for the Heavy Bowgun with the Artian weapon, optimized for Pierce Ammo. Since Pierce Ammo can only shoot 2 rounds by default, make sure to get at least Capacity Boost x2. In addition to Pierce Ammo, it can also fire Paralysis Ammo Lv2, providing crowd control capabilities in multiplayer. The Sheath Jewel slot is flexible, so you can replace it with something like Medicine Jewel 1 without any issues.