1. Introduction
This manual provides comprehensive instructions for the assembly and understanding of the LEGO NINJAGO Four Weapons Blacksmith 15th Anniversary building set, model 71858. This set allows builders to recreate the iconic blacksmith shop from the NINJAGO TV show, featuring intricate details and interactive elements. Please read all instructions carefully before beginning assembly.

Image 1.1: The complete LEGO NINJAGO Four Weapons Blacksmith set, showcasing the detailed structure and included minifigures.
2. Setup & Assembly
The LEGO NINJAGO Four Weapons Blacksmith set contains 1,259 pieces. Follow the step-by-step instructions provided in the physical instruction booklet included with your set. For an enhanced building experience, the official LEGO Builder app offers 3D digital instructions, allowing you to zoom and rotate the model as you build.
2.1 Unpacking and Preparation
- Carefully open the packaging and sort the LEGO elements by color or type to facilitate the building process.
- Ensure all numbered bags are present as indicated in the instruction booklet.
- Prepare a clean, flat surface for assembly.
2.2 Building Process
Refer to the printed instruction manual or the LEGO Builder app for detailed assembly steps. Each step illustrates the required pieces and their placement. Pay close attention to the orientation of pieces to ensure correct construction.

Image 2.1: Builders utilizing the LEGO Builder app for 3D digital instructions during assembly.
3. Features and Interactive Elements
The LEGO NINJAGO Four Weapons Blacksmith set is designed with several interactive features and details that reflect the history of NINJAGO.
3.1 Opening Blacksmith Shop
The model can be opened at the back to reveal interior details, including a bedroom and a forge. This allows for enhanced play and display possibilities.

Image 3.1: The blacksmith shop model shown in its open configuration, revealing the interior spaces.
3.2 Hidden Details and Accessories
- Discover ninja stickers concealed behind removable helmet and hood displays.
- Push out a sign to reveal a secret golden weapons map.
- The set includes various accessories and details from the show's history within the forge and bedroom areas.

Image 3.2: A detailed view of the bedroom area inside the blacksmith shop, featuring various accessories.
3.3 Minifigures
The set includes 6 minifigures: Maya, Ray, Nya, Blacksmith Kai, Master Wu, and a collectible Elemental Master of Earth on a display stand. These minifigures allow for recreating scenes or developing new adventures.

Image 3.3: The six minifigures included with the set, each with unique details and accessories.
3.4 Product Overview Video
Video 3.1: A 360-degree spin of the LEGO NINJAGO Four Weapons Blacksmith set, showcasing its exterior from all angles.
4. Maintenance
To ensure the longevity and appearance of your LEGO set, follow these simple maintenance guidelines:
- Cleaning: Use a soft, dry cloth to gently wipe away dust. For more thorough cleaning, use a mild soap solution and a soft brush, then rinse with clean water and air dry. Avoid harsh chemicals or abrasive materials.
- Storage: Store the set in a cool, dry place away from direct sunlight to prevent discoloration or warping of plastic elements.
- Handling: Handle the set with care to avoid accidental disassembly or damage to delicate parts.
5. Troubleshooting
If you encounter any issues during assembly or with the set, consider the following common solutions:
- Missing Pieces: Double-check all packaging and sorting areas. If a piece is genuinely missing, contact LEGO Customer Service for replacement parts.
- Assembly Errors: Review the instruction steps carefully. Sometimes a small piece may be misplaced or oriented incorrectly, affecting subsequent steps. Disassemble the problematic section and re-build it.
- Loose Connections: Ensure all bricks are firmly pressed together. LEGO bricks are designed to connect securely.
6. Specifications
| Brand | LEGO |
| Model Name | NINJAGO Four Weapons Blacksmith 15th Anniversary |
| Model Number | 71858 (Manufacturer Part Number: 6581068) |
| UPC | 673419419239 |
| Number of Pieces | 1259 |
| Recommended Age | 14 years and up |
| Material | Plastic |
| Item Dimensions (L x W x H) | 17.95 x 11.1 x 3.47 inches (packaging) |
| Assembled Dimensions | Over 7 in. (18 cm) high, 9 in. (23 cm) wide and 6 in. (16 cm) deep |
| Included Components | LEGO Building Elements, 6 Minifigures |
7. Warranty & Support
LEGO products are manufactured to high-quality standards. For information regarding product warranty, missing parts, or general support, please visit the official LEGO website or contact their customer service directly.
- Official LEGO Website: www.lego.com
- Customer Service: Refer to the LEGO website for regional contact information and support options.





