18mm Model Rocket Motor Retainer
These 18mm motor retainers are made in the USA. They work with Estes-style BT20 body tubes. Thicker paper tubes can be sanded to achieve a fit.
Full set weight : 0.13oz/3.7g. For use with 18mm motors, including Estes/Quest 18mm A-C motors, and Aerotech single use and RMS 18mm motors.
No tools required to operate. Motors without thrust ring are friction-fit.
