Hero image 0 of LEGO NINJAGO Arin’s Spinjitzu Battle Mech Building Toy - Ninja Building Set for Kids, Ages 7+ - With Arin, Baby Ryu, & Villain Minifigures - Gift Idea for Boys, Girls, & Dragons Rising Fans - 71839, 0 of 8
Overall pick
LEGO NINJAGO Arin’s Spinjitzu Battle Mech Building Toy - Ninja Building Set for Kids, Ages 7+ - With Arin, Baby Ryu, & Villain Minifigures - Gift Idea for Boys, Girls, & Dragons Rising Fans - 71839
Key item features
- Epic Showdowns: Builders can stage epic battles with Arin, Baby Riyu, and the villainous Spectral Dragonian Warrior minifigures.
- Fully Posable Mech: Construct a mech with a rotating torso, opening chest cockpit, articulated arms and legs, and twin massive sword accessories.
- Mix & Match: Swap body parts and weapons with other 2024 LEGO NINJAGO mechs to create the ultimate fighting machines.
- Intuitive Building: The LEGO Builder app provides step-by-step instructions with 3D viewing tools for an enhanced building experience.
- Perfect Dimensions: Arin's Spinjitzu Battle Mech stands over 6.5 inches (16 cm) tall and contains 213 pieces.
- Creative Play: Ideal for kids who love ninjas, robots, and creative storytelling, inspired by the NINJAGO Dragons Rising TV show.
Generated by AI
Specs
- BrandLEGO
- ThemeLEGO Ninjago
- Piece count213
- Minimum recommended age7 years
- FeaturesCollectible
- Character groupLEGO Ninjago
Reviews summary
Pros
- : Directions are easy to follow and well-organized.
- : Made for easy assembly, suitable for children.
Generated by AI
Current price is USDNow $18.39
You save $4.60
was $22.99$22.99
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Price when purchased online
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About this item
Product details
The LEGO NINJAGO Arin's Spinjitzu Battle Mech (71839) building set lets boys and girls 7 years old and up command the new-generation ninja's towering battle machine from NINJAGO Dragons Rising Season 3. This fully posable mech dominates pretend play action scenes with its rotating torso, articulated arms and legs, and twin massive sword accessories. The opening chest cockpit reveals the Arin minifigure ready for action, with loyal companion Baby Riyu figure by his side. Together, they'll take on the menacing Spectral Dragonian Warrior minifigure in reenactments of kids' favorite NINJAGO Dragons Rising scenes or star in all-new imaginary adventures. For even more action, kids can combine this mech set with others in the 2024 LEGO NINJAGO collection to create the ultimate NINJAGO mech! Perfect for solo adventures or building with friends, this building set makes an ideal birthday or holiday gift for NINJAGO fans and kids who love building challenges. The master mech capability allows builders to mix and match components of Arin's Spinjitzu Battle Mech with Cole's Elemental Earth Mech (71806), Sora's Elemental Tech Mech (71807), Kai's Elemental Fire Mech (71808), and Lloyd's Elemental Power Mech (71817) (each set sold separately) for unlimited customization possibilities. The LEGO Builder app guides young builders through intuitive step-by-step instructions with helpful 3D viewing tools. Contains 213 pieces.
- EVIL MEETS ITS MATCH – The LEGO NINJAGO Arin's Spinjitzu Battle Mech (71839) building set lets boys and girls 7 years old and up command the new-generation ninja's towering battle machine from NINJAGO Dragons Rising Season 3
- LEGO NINJAGO MINIFIGURES – Builders can stage epic showdowns between good and evil with an Arin minifigure equipped with a crystal katana sword, and the villainous Spectral Dragonian Warrior minifigure, plus an adorable Baby Riyu dragon companion figure
- INTERACTIVE FEATURES & DETAILS – Kids can construct a fully posable mech with a rotating torso, an opening chest cockpit, articulated arms and legs, and massive twin sword accessories to recreate battles from the TV show or imagine new adventures
- MIX & MATCH NINJAGO MECH – Fans can swap body parts and weapons with other 2024 LEGO NINJAGO mechs including Cole's, Sora's, Kai's, and Lloyd's elemental mechs (each set sold separately) to create the ultimate fighting machines
- GIFT FOR BOYS & GIRLS – Makes a cool birthday or holiday present for kids who love ninjas, robots, creative storytelling, and fans of the hit NINJAGO Dragons Rising TV show
- INTUITIVE BUILDING EXPERIENCE – The LEGO Builder app guides kids through easy step-by-step instructions with 3D viewing tools for enhanced construction adventures
- DIMENSIONS – Arin's Spinjitzu Battle Mech stands over 6.5 in. (16 cm) tall and contains 213 pieces
info:
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Specifications
Brand
LEGO
Theme
LEGO Ninjago
Piece count
213
Minimum recommended age
7 years
Warranty
Warranty information
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Warnings
CHOKING HAZARD - Children Under 3
CHOKING HAZARD - Children Under 3This toy is not suitable for ages under 3 years. It contains one or more of the following items: marbles, small ball, or small parts.
Customer ratings & reviews
How item rating is calculated
Reviews summary
Pros
- : Directions are easy to follow and well-organized.
- : Made for easy assembly, suitable for children.
Generated by AI
Customer photos
+21 images
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Showing 1-3 of 26 reviews
Aug 14, 2025
beckieb6_7950
5 out of 5 stars review
Cool transformer
[This review was collected as part of a promotion.] Just got this today. Only 217 pieces so it won't take my grandson long to put together. He loves these things. He is only 6 but it will take him about 15 minutes to do. I will be his best friend. Lol.
Review from influenster.com
Helpful?4DP5KFX5TP9E13962569661
Aug 15, 2025
jessicah13_699
5 out of 5 stars review
Perfect
[This review was collected as part of a promotion.] This was an awesome product! My son loved it. He was able to assemble it easily with the directions. He can make several things out of this one product. It came packaged well with all the pieces. It seems like it will last well
Review from influenster.com
Helpful?4DP5KFX5TP9E13962569661
Aug 27, 2025
anhngoc659x_1093
5 out of 5 stars review
Fun for the whole family, easy to follow instructi
[This review was collected as part of a promotion.] We are big Lego and Duplo fan and we totally love this Arin's Spinjitzu Battle Mech set. The blocks and items came in little bags and the instruction booklet is so easy to follow with big pictures and illustrations. Our 2 years old love playing with the blocks, just stacking and taking them apart. We watch him closely during playtime to ensure he didn't try to eat any. As adults, we had a fun time putting this together, very easy and quick. The end product is a robot that looks really cool on our shelf. Will definitely purchase other Lego sets and highly recommend this set. The details, the quality and design are all top notch and amazing.
Review from influenster.com
Helpful?4DP5KFX5TP9E13962569661
