LEGO Ninjago Arin’s Spinjitzu Battle Mech 71839

Set Overview

Enter the Dragons Rising saga with LEGO 71839 Arin’s Spinjitzu Battle Mech—a dynamic buildable mech designed for action-packed play and display. Inspired by Season 3 of the Ninjago TV series, this posable mech features rotating joints, oversized swords, and a cockpit for Arin to pilot into battle against the Spectral Dragonian Warrior. With modular compatibility and collectible accessories, it’s a must-have for mech fans and ninja collectors alike.

Set Details

• Brand: LEGO
• Theme: Ninjago / Dragons Rising Season 3
• Set Number: 71839
• Piece Count: 213 pieces
• Recommended Age: 7+
• Release Date: August 1, 2025

Included Minifigures

• Dark Merge Arin: Crystal katana, dual-molded legs, battle armor
• Spectral Dragonian Warrior: Translucent sword, ghostly detailing
• Baby Riyu: Brick-built dragon companion

Design & Features

• Mech Build: Posable arms, legs, and rotating torso for dynamic posing
• Cockpit: Opening chest compartment to seat Arin
• Weapons: Dual oversized swords with prismatic blade detailing
• Modular Compatibility: Mix-and-match parts with other 2024 mechs (71806, 71807, 71808, 71817)

Build Experience

• Estimated Build Time: 1–1.5 hours
• Difficulty Level: Low to moderate—ideal for young builders and Ninjago fans
• Instruction Format: Full-color manual + LEGO Builder app support

Collector Appeal

• Display Value: Bold silhouette with translucent blade accents and mech detailing
• Minifigure Rarity: Exclusive Dark Merge Arin and Baby Riyu companion
• Packaging: Action-themed box with Dragons Rising branding
• Compatibility: Pairs with other Season 3 sets for expanded ninja battles

Why Collectors Love It

LEGO 71839 Arin’s Spinjitzu Battle Mech delivers fast-paced ninja action in a compact, posable build. With exclusive minifigures, modular mech features, and storytelling potential, it’s a standout for fans of Ninjago’s evolving saga and mech-based play.