ACETECH Tracer fit on any 14mm CCW and 11mm CW barrels (By adapter)
It should be a technical problem. Please fill Inquiry form to contact us for further help
1. Make sure you use tracer BBs
2. For Lighter BT, please make sure you update both your app and BT firmware. If it still doesnt work. Please contact us directly.
Please contact us directly and address your problem.
We are willing to help