When creating the car wash water gun toy, the TikTok tutorial failed to explain how to disassemble the threaded connection of the gun’s extension tube.

Since the original factory‑made front sight assembly couldn’t be installed, I modified the design and reprinted the model.

After assembly, the exposed metallic finish of the extended barrel really adds a nice tactile and visual appeal—maybe I should have used gold‑colored filament for printing.

In the end, the entire toy cost less than 30 RMB. Highly recommended for car wash enthusiasts!

After several test runs,

the AKM attachment works exceptionally well, allowing my car wash hose to rotate smoothly and effortlessly.

Wishing you all lots of fun with your creations!