Introduction
This manual provides comprehensive instructions for assembling, operating, and maintaining your CASEIER M24 Building Blocks Sniper Rifle. Designed as a 1:1 scale replica, this model offers an engaging building experience and a realistic representation of the M24 sniper rifle. Please read all instructions carefully before beginning assembly.

Figure 1: Fully assembled CASEIER M24 Building Blocks Sniper Rifle, showcasing its detailed design and included golden bullet accessories.
What's in the Box
Verify that all components are present before starting assembly. Your package should contain:
- Instruction Manual
- Building Block Parts Package (pre-sorted into sections)
- Storage Box
Assembly Instructions
The assembly process is divided into sections for ease of construction. Follow the step-by-step color manual provided in your package.
- Preparation: Unpack all parts. The building blocks are pre-sorted into several small bags within larger sections. Organize these bags according to the manual's instructions.
- Follow the Manual: Refer to the detailed, step-by-step color instruction manual. Each step is clearly explained with visual aids.
- Precision Assembly: Ensure each block connection is smooth and compact. The design features tight tolerance control for a satisfying build feel and stable final model.
- Component Integration: Pay close attention to the assembly of key components such as the adjustable scope, barrel, bolt, stock, trigger, magazine, and stabilizing bipod.

Figure 2: Construction breakdown of the M24 model, highlighting key components and their functions.

Figure 3: Detail of the adjustable scope feature on the M24 model.
Operating Instructions
Once assembled, the CASEIER M24 Building Blocks Sniper Rifle features realistic firing action. Follow these steps for operation:
- Load Bullets: Press down the slider on the magazine and load up to three included bullet pieces into the magazine.
- Insert Magazine: Insert the loaded magazine into the gun and ensure it is securely latched.
- Chamber a Round: Lift the bolt handle, pull it back to chamber a round, then push it down to lock it in place.
- Fire: Pull the trigger to fire the bullet.

Figure 4: Step-by-step guide for operating the M24 sniper rifle model, including loading, inserting the magazine, chambering, and firing.
Maintenance
To ensure the longevity and optimal performance of your CASEIER M24 Building Blocks Sniper Rifle, follow these maintenance guidelines:
- Cleaning: Wipe the model with a soft, dry cloth to remove dust and debris. Avoid using harsh chemicals or abrasive materials.
- Storage: Store the assembled model or individual blocks in the provided storage box or a clean, dry place away from direct sunlight and extreme temperatures.
- Handling: Handle the model with care to prevent accidental disassembly or damage to delicate parts.
Troubleshooting
If you encounter any issues during assembly or operation, refer to the following common solutions:
| Problem | Solution |
|---|---|
| Missing Parts | If you find any missing parts, follow these steps:
|
| Blocks Not Fitting Smoothly | Ensure you are using the correct blocks for the step. Apply gentle, even pressure. If a block is consistently difficult to fit, check for any manufacturing imperfections or try a different piece if available. |
| Firing Mechanism Not Working | Verify that the magazine is fully inserted and latched. Ensure the bolt handle is correctly operated to chamber a round before pulling the trigger. Check for any obstructions in the firing path. |
Specifications
| Feature | Detail |
|---|---|
| Model Number | M24 |
| Product Dimensions (L x W x H) | 42.52 x 5.9 x 10.24 inches (108 x 15 x 26 cm) |
| Item Weight | 2.82 pounds (1.28 kg) |
| Recommended Age | 8 years and up |
| Material | Premium ABS (non-toxic, tough-built) |
| Piece Count | 1380 PCS |

Figure 5: Physical dimensions of the assembled M24 model.
Safety Information
This product contains small parts and is recommended for ages 8 and up. Adult supervision is advised, especially during assembly and initial operation. Keep small parts away from younger children to prevent choking hazards. Do not aim the model at eyes or face. Use only the provided bullet pieces for firing.

Figure 6: The product is made from premium, non-toxic ABS material.
Warranty and Support
CASEIER is committed to providing top-notch product quality and attentive after-sales service. Rigorous testing ensures complete parts for every set. If you have any questions about your product or require assistance with missing parts, please contact the FanyiUS Team.
Contact Information:
- Find the shopping cart on the product page and click "FanyiUS".
- Find "Ask-a-question" on the web page and click to send your inquiry.
The manufacturer offers fast replacement service for any missing parts, ensuring a worry-free experience.