Our take: JG factory upgraded high speed metal gears set. This high quality set of high speed metal gears works for any Version 2 (V2) or Version 3 (V3) gearbox. Able to handle rate of fire speeds of up to 25 RPS [rounds per second], or approximately 1500 rounds per minute!
- Extremely durable with high build quality
- Ready to use right out of the box; professional installation is recommended/may be required