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Welcome to our 2107 Black Friday Weekend Sale! Shop for deals throughout our site. Sale prices will update every night. The sale ends Monday. Because of the increased volume of sales, please allow us a little longer than usual to ship your order.

18mm Aluminum Rocket Motor Retainer

Rocketarium 18mm Aluminum Rocket Motor Retainer

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$11.95
Save: 10%
Our Price: $10.75  $10.21
On Sale Now: 5% off

Rocketarium's 18mm motor retainers are precision machined from aluminum.  For use with all 18mm motors (such as Estes and Quest 18mm A-C motors and Aerotech single use and RMS 18mm motors), these fit Estes-size BT-20 body and motor tubes (slightly thicker 18-mm paper tubes, such as those from LOC or Aerotech, can be sanded to achieve a good fit).

No tools are required to use these retainers. For motors with thrust rings, just screw off the cap, insert the motor, and screw the cap back on.. Motors without a thrust ring must be friction-fit.


  • Model: RK-MRT18S
  • 2 Units in Stock
  • Manufactured by: Rocketarium


This product was added to our catalog on Monday July 20, 2015.





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