Great set to purchase for 8-10 year old.
My son loves this set. This might be the only set that he has put together and didn't take it apart. He has it sitting up in his room since day one. Read more
LEGO
LEGO NINJAGO The Fire Knight Mech Building Set - Model Kit with Kai Minifigure from Legends Monstrosity -
$119.99
About this item
- LEGENDARY NINJAGO BATTLE – Teens, 14 years old and up, build The Fire Knight Mech (71846) locked in combat with an ancient sea monster
- MODEL BUILDING KIT – Both the mech and sea monster can be posed for endless pretend battles or displayed as fan-built art
- LEGO NINJAGO MINIFIGURE – Caped warrior Kai wields his magical sword inside the mech while a fisherman watches the action from his boat
- BUILD, PLAY, & DISPLAY – Teens create an impressive piece of room decor that can be removed from its base for mech adventures
- GIFT FOR TEEN BOYS & GIRLS – Makes a perfect birthday present or cool special-occasion gift for teenage NINJAGO fans who love LEGO building toys
- LEVEL-UP BUILDING SKILLS – The LEGO Builder app provides an intuitive guide where builders can zoom in, rotate models in 3D, and track their progress
- DIMENSIONS – This 996-piece model stands over 10 in. (26 cm) tall on its display stand with spear
Key details
- manufacturer_recommended_age
- 14 years and up
- best_sellers_rank
- #18,629 in Toys & Games ( See Top 100 in Toys & Games ) #672 in Toy Building Sets
- release_date
- June 1, 2025
- manufacturer
- LEGO
Dimensions and fit
- dimensions
- 13.94 x 14.88 x 3.7 inches
- weight
- 3.32 pounds
- product_dimensions
- 13.94 x 14.88 x 3.7 inches
- item_weight
- 3.32 pounds
Technical specifications
- item_model_number
- 6526931
Highlights
About this item
- LEGENDARY NINJAGO BATTLE – Teens, 14 years old and up, build The Fire Knight Mech (71846) locked in combat with an ancient sea monster
- MODEL BUILDING KIT – Both the mech and sea monster can be posed for endless pretend battles or displayed as fan-built art
- LEGO NINJAGO MINIFIGURE – Caped warrior Kai wields his magical sword inside the mech while a fisherman watches the action from his boat
- BUILD, PLAY, & DISPLAY – Teens create an impressive piece of room decor that can be removed from its base for mech adventures
- GIFT FOR TEEN BOYS & GIRLS – Makes a perfect birthday present or cool special-occasion gift for teenage NINJAGO fans who love LEGO building toys
- LEVEL-UP BUILDING SKILLS – The LEGO Builder app provides an intuitive guide where builders can zoom in, rotate models in 3D, and track their progress
- DIMENSIONS – This 996-piece model stands over 10 in. (26 cm) tall on its display stand with spear
Ask about this product
From the brand
Product videos
Product video 1
Customer reviews
175 reviewsPositive
Rated 4.8/5 across 175 reviews — highly regarded by customers.
- 100% of sampled reviews are from verified purchases.
- 100% of sampled reviews give 4–5 stars.
Customers say
Customers find this LEGO set to be a favorite ninjago set, with one noting it's fantastic for both LEGO and mecha fans.
Generated from the text of customer reviews
Wonderful
Excellent my grandson was happy, and built it in a short time. Thank you Read more
One of the greatest NINJAGO sets ever
I love this set. The build is amazing, the figure is awesome, the poster is super cool. And it’s priced very well. Read more
Fantastic lego set
A fantastic set for both lego and mecha fans. The base is awesome and when fully assembled resembles a gunplay model. Read more
excelente compra
se ve super Read more
Lego
Excelente lego Read more
Excelente producto.
Genial Read more
Super Rad
Super cool set. Very fun to build and this one is pretty posable. The default scene is very fun and dynamic but the model stands on its own and holds a variety of poses very well so this set is pretty playable too. There weren't any pissing pieces or weird, hard to execute steps. It is a little bit more of a complicated build, so this is maybe a family build if your child is on the younger side. If you're getting it for yourself, you're going to have a great time. The poster it comes with is pretty cool too. Read more
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