Overview

  • 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
  • A great gift idea
    This set is a great gift for any LEGO fan age 7 years and up.

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Specifications

Capacity & configuration

Number Of Pieces Included
213

Dimensions & weight

Product Name
NINJAGO Arin’s Spinjitzu Battle Mech Kids Toy 71839, NINJAGO Arin’s Rising Dragon Strike Toy 71803

Features

Brand
LEGO
Series
Ninjago
Material
Plastic
Recommended Minimum Age
7 years
Brand/Character
LEGO
UPC
673419405058

Power & warranty

Model Number
6526917
Warranty - Parts
None
Warranty - Labor
None

Warranty & protection

Included manufacturer warranty

See manufacturer documentation.

Register your product with the manufacturer within 30 days of delivery.

Warranty service

Manufacturer warranty claims are handled by the manufacturer. We are happy to help you find the right contact: (888) 419-6820.

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Customer reviews

Write a review
STEVENRJun 13, 2026 · Verified purchase ★★★★★

Lego Ninjago Arin - Very good quality, need to buy it, very good lucking build and the pieces stay together

MattKFeb 14, 2026 · Verified purchase ★★★★★

Lego Ninjago - This is one nice Lego set. Fun to build and great price. The color scheme is great

YixingOct 24, 2025 · Verified purchase ★★★★★

Great Lego Set - Nice to play, I bought this for my kid, and he loves it.

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Questions & answers

Ask a question

Email [email protected] or call (888) 419-6820 during business hours.

Free U.S. shippingOn every order. Leaves our store in 1–2 business days, arrives in 3–5 business days.
Free returns for 30 daysNo restocking fee. We email you a prepaid return label.
We can install it tooOptional in-home delivery, installation and haul-away on large appliances.
Talk to our team(888) 419-6820 · Mon–Sat