G&G Spur Gear

This part is specifically engineered as an OEM replacement for Top Tech Airsoft AEGs. While it may fit other gearboxes with standard Tokyo Marui specifications, we recommend verifying your specific gearbox model for precise fitment before installation.

Choosing an OEM part ensures the gear is manufactured to the exact tolerances and material specifications intended by the original designers. This guarantees seamless integration with your existing gear set, reducing the risk of shimming issues or premature wear.

If your existing sector and bevel gears are in good condition, you do not need to replace the entire set. However, always inspect the teeth of the mating gears for signs of wear, as installing a new gear against heavily worn components can accelerate damage to the new part.

When installing the new gear, take the opportunity to thoroughly clean the gearbox shell and re-shim the gears to ensure smooth, quiet operation. Apply a high-quality, airsoft-specific grease to the gear teeth to minimize friction and extend the lifespan of the new component.

This gear is designed as a factory-standard replacement for reliable, consistent performance in stock or near-stock configurations. If you are planning a high-stress build with a high-torque motor or a high-speed spring, you may want to consider reinforced aftermarket gears designed specifically for those applications.