Arin's Battle Mech (71804-1)
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Set details
Name: Arin's Battle MechSet number: 71804-1
Year: 2024
Theme: Ninjago
Number of parts: 104
Number of part types: 69
Age rating: 4+
Retirement date: 31-12-2025
Arin’s Battle Mech (71804) ninja toy lets kids aged 4+ learn to build as they join in with their ninja heroes’ attempt to save their dragon friends. This role-play action toy includes an impressive mech figure to inspire kids to recreate exciting adventures from season 2 of the NINJAGO® Dragons Rising TV show. This LEGO® set comes with 2 minifigures: Arin with a katana accessory and a Wolf Mask Warrior with a sword accessory. Arin fits in the posable mech figure, which wields a large sword and rotating blade, while the Wolf Mask Warrior can fly in a glider that has posable wings, a disc shooter and 2 spears. There’s also a brick-built crystal cave with a magic mallet inside and a weapons rack with 2 golden katana sword accessories. This ninja toy has been designed to provide a fun experience for children aged 4+ who are discovering the joy of building with LEGO bricks. The set comes with a Starter Brick: a partly constructed base that gets kids building quickly and with confidence.
Browse all 104 parts in set 71804-1 with individual pricing from BrickLink or Brick Owl.
Pricing information known of 69/69 parts.
Compare the value of buying Arin's Battle Mech as a complete set versus the total value of all parts individually.
BrickLink ![]() | |||||
| Condition | Timespan | Avg price | Items sold | Inventory value | Ratio |
| New | 6 months | ? | ? | ? | |
| Used | 6 months | ? | ? | ? | |
Brick Owl ![]() | ||||
| Condition | Timespan | Avg price | Inventory value | Ratio |
| New | Current | 1.26 | ||
| 6 months | 1.59 | |||
| 1 year | 1.71 | |||
| Used | Current | ? | ? | |
Arin’s Battle Mech (71804) ninja toy lets kids aged 4+ learn to build as they join in with their ninja heroes’ attempt to save their dragon friends. This role-play action toy includes an impressive mech figure to inspire kids to recreate exciting adventures from season 2 of the NINJAGO® Dragons Rising TV show.
This LEGO® set comes with 2 minifigures: Arin with a katana accessory and a Wolf Mask Warrior with a sword accessory. Arin fits in the posable mech figure, which wields a large sword and rotating blade, while the Wolf Mask Warrior can fly in a glider that has posable wings, a disc shooter and 2 spears. There’s also a brick-built crystal cave with a magic mallet inside and a weapons rack with 2 golden katana sword accessories.
This ninja toy has been designed to provide a fun experience for children aged 4+ who are discovering the joy of building with LEGO bricks. The set comes with a Starter Brick: a partly constructed base that gets kids building quickly and with confidence.
- Learn-to-build ninja toy for kids – Boys and girls aged 4 years old and up can discover the joy of building and play out ninja stories with the all-action Arin’s Battle Mech playset
- Posable mech toy – Kids can recreate battles from season 2 of the NINJAGO® Dragons Rising TV show with this mech figure featuring a cockpit, posable limbs, rotating blade and large sword accessory
- 2 LEGO® NINJAGO® minifigures – Ninja playset includes an Arin minifigure armed with a katana accessory so kids can role-play action against the Wolf Mask Warrior with his sword
- Flyer and crystal cave – Role-play toy set includes a flyer with posable wings, a disc shooter and 2 spear elements, a crystal cave with a magic mallet, and a weapons rack with 2 katana sword elements
- Ninja gift – LEGO® set provides a fun build-and-play experience and is a gift idea for kids aged 4 and up to fuel their imaginations and develop their storytelling skills
- Discover more ninja toys for kids – Look out for other NINJAGO® playsets (sold separately) featuring dragons, mechs and ninja legends
- Introduction to building with LEGO® bricks – 4+ LEGO playsets help youngsters learn how to build, while allowing the rest of the family to share in the fun
- Measurements – 104-piece LEGO® set with a mech toy standing over 4 in. (10 cm) tall
Find the cheapest offers for set 71804-1 from sellers on secondary marketplaces like Brick Owl and eBay.
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![Image of part Weapon Sword / Katana / Shamshir with Capped Pommel [Square Guard]](https://cdn.rebrickable.com/media/parts/elements/6116596.jpg)


![Image of part Plate Special 1 x 2 with Clips Horizontal [Open O Clips]](https://cdn.rebrickable.com/media/parts/elements/6310268.jpg)






![Image of part Plate Special 1 x 2 [Side Handle Closed Ends]](https://cdn.rebrickable.com/media/parts/elements/6146321.jpg)










![Image of part Slope Curved 2 x 1 No Studs [1/2 Bow]](https://cdn.rebrickable.com/media/parts/elements/6179812.jpg)





![Image of part Plate Special 1 x 2 with Handle on End [Closed Ends]](https://cdn.rebrickable.com/media/parts/elements/4515368.jpg)

![Image of part Plate Special 1 x 2 [Open O Top Clip]](https://cdn.rebrickable.com/media/parts/elements/6326078.jpg)








![Image of part Technic Brick 1 x 2 [1 Pin Hole]](https://cdn.rebrickable.com/media/parts/elements/4211111.jpg)











