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LEGO NINJAGO Arin’s Spinjitzu Battle Mech Kids Toy 71839
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About this item
Highlights
- 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
Description
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.
Number of Pieces: 213
Suggested Age: 7 Years and Up
Model #: 71839
Educational Focus: Gross Motor Skills, Fine Motor Skills, Creativity, Sensory Development, Creative Thinking
Includes: Toy Building Components
Industry or Government Certifications: CPSIA Certified
Material: Plastic
Battery: No Battery Used
TCIN: 94152773
UPC: 673419405058
Item Number (DPCI): 204-00-9669
Origin: Made in the USA or Imported
If the item details aren’t accurate or complete, we want to know about it.
Shipping details
Estimated ship dimensions: 2.402 inches length x 7.52 inches width x 10.315 inches height
Estimated ship weight: 0.675 pounds
Return details
This item can be returned to any Target store or Target.com.
This item must be returned within 90 days of the date it was purchased in store, shipped, delivered by a Shipt shopper, or made ready for pickup.
See the return policy for complete information.
Q: Do the other figures shown, come with the set?
submitted by Cindy - 18 days ago
A: Yes! All the figures shown on the box are included. Arin, the Spectral Dragonian Warrior, and Baby Riyu are all part of the set. - Imaan, LEGO® Customer Service
submitted byLEGO Customer Service - 18 days agoBrand expert
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4.6 out of 5 stars with 25 reviews
broad age appeal: 5 out of 5
ease of use: 5 out of 5
length of play: 5 out of 5
quality: 5 out of 5
value: 5 out of 5
100% would recommend
1 recommendations
5 out of 5 stars
17 September, 2025
originally posted on influenster.com

Lego is very creative
[This review was collected as part of a promotion.] Ninjago Dragon Rising is a huge success. It's entertaining, dynamic, creative, and perfect for spending time with the family. We had a lot of fun putting it together, and it's easy because you put it together in order since each package comes with a number, making it simpler. I love this strategic and spectacular toy for children 7 and up, so they can develop their creativity and spend their time learning. It's worth every penny. It's perfect for collecting since it's high quality and long-lasting. Lego is one of my favorite toys for my kids.
5 out of 5 stars
16 September, 2025
originally posted on influenster.com

Awesome
[This review was collected as part of a promotion.] This is such a fun toy. My little one LOVES Legos and had a lot of fun building this. My child, however, tends to focus heavily on making vehicles instead of creating action figures so that is exactly what he ended up doing. The perk of Legos is that you can be as creative as you want and this offered many unique pieces and colors to expand his creativity. Legos always get a 10/10.
1 out of 5 stars
13 September, 2025
They did not have it
They didnt have and I have been waiting
5 out of 5 stars
4 September, 2025
originally posted on influenster.com

Fun Ninjago Lego set!
[This review was collected as part of a promotion.] Really fun set with lots of play options! The mech is poseable, the swords are huge, and swapping parts with other mechs makes it even cooler. My nephew loved this Lego. At 213 pieces, it's not too big but still feels like a solid build. It’s recommended for 7+.
5 out of 5 stars
29 August, 2025
originally posted on influenster.com

Love legos
[This review was collected as part of a promotion.] Me and my daoughter love doing legos it’s super fun and it’s a challenge, it’s really entertaining and I always collect them so they can last for a long time .
5 out of 5 stars
28 August, 2025
originally posted on influenster.com

LEGOs Battle Mech
[This review was collected as part of a promotion.] My daughter absolutely loves the free sample of Legos Battle Mech that I received from Influenster. She loves assembling the pieces and then playing with them. They are very durable and provide hours of fun!
5 out of 5 stars
27 August, 2025
originally posted on influenster.com

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.
5 out of 5 stars
24 August, 2025
originally posted on influenster.com

Great set
[This review was collected as part of a promotion.] My brother loved spending the time to build this Lego and he loves how it turned out. Such a nice way to keep kids of their iPad and build something themselves. Finished piece is also durable.
5 out of 5 stars
24 August, 2025
originally posted on influenster.com

Character vibes with what’s popular and on trend f
[This review was collected as part of a promotion.] This was a gift from Influenster in exchange for my thoughts. I have given this 5 stars because of its living up to the LEGO brand. The character is very unique and vibes with a popular character of today’s younger generation. Building is fun and at the end you have a figurine to display on your shelf.
5 out of 5 stars
22 August, 2025
originally posted on influenster.com

Fun and easy build that kids will play with once i
[This review was collected as part of a promotion.] My son loved this set! The mini figures were unique so he was very excited to have a couple new mini figs. The mech build was challenging enough that it kept him busy for a while but easy enough for him to do it alone. He loves yellow so the finished product will be staying on his shelf for a long time.
5 out of 5 stars
21 August, 2025
originally posted on influenster.com

I love Legos
[This review was collected as part of a promotion.] I’ve been building this slowly with my younger cousins as a fun activity and it keeps us busy. It’s a great set with a good amount of pieces and the finished product looks great. The instructions are easy to follow too
5 out of 5 stars
21 August, 2025
originally posted on influenster.com

Great addition to the Ninjago line!
[This review was collected as part of a promotion.] The LEGO Ninjago Arin’s Spinjitzu Battle Mech (71839) was an absolute blast to assemble. It took me about an hour to put together, and the process was smooth and enjoyable from start to finish. The mech looks fantastic once built, with great details and fun weapons. I really love the Ninjago line, and this set is a perfect addition to the collection. Highly recommend for fans of mechs or Ninjago!
5 out of 5 stars
18 August, 2025
originally posted on influenster.com

Great fun for Ninjago fans
[This review was collected as part of a promotion.] This set was a big hit with my son. He loved building it and now spends hours creating battles and stories. The poseable mech and interchangeable parts with other sets make playtime more creative. The build holds together well, even after lots of play. Instructions were clear and easy enough for him to follow with little help. Pieces are typical LEGO quality—safe and sturdy, with no sharp edges. Overall, a great set for NINJAGO fans that keeps kids engaged long after the build is finished.
5 out of 5 stars
18 August, 2025
originally posted on influenster.com

Lego set
[This review was collected as part of a promotion.] It’s a very nice Lego set. Wasn’t hard to assemble, came with with very clear instructions. My little brother enjoyed it and plays with it all the time.
5 out of 5 stars
17 August, 2025
originally posted on influenster.com

Fun toy
[This review was collected as part of a promotion.] My kids love putting together this Lego toy. The instructions and having the pieces separated out in numerical order made it easier. They felt that some parts were challenging, but it did keep them occupied for a couple of hours. This is great for kids who want to build on their motor skills and learn how to put together toys.
3 out of 5 stars
17 August, 2025
originally posted on influenster.com

Fun and easy to put together
[This review was collected as part of a promotion.] My son had a good time putting it together. The directions were easy to follow and he was able to do it relatively quickly. Would purchase this type again.
5 out of 5 stars
15 August, 2025
originally posted on influenster.com

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
5 out of 5 stars
14 August, 2025
originally posted on influenster.com

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.
5 out of 5 stars
Thumbs up graphic, would recommend
3 August, 2025
Amazing
Amazing toy for kids
1 out of 5 stars
2 June, 2025
originally posted on LEGO
Okay for a first set
I would not recommend this set to a person UNLESS this was there first set.