Aero Pack 38mm Retainer (RA38PH)

Aero Pack Quick-Change Motor Retainer for 38mm Madcow Standard Cardboard and Fiberglass Motor Mounts using Propulsion Polymers, RATTworks and West Coast Hybrid Motors.API Quick-Change Motor Retainers offer fast, tool-free motor change and add professional quality to your rocket. Simple installation of retainer assemblies require only bonding to end of motor mount tube. (Aeropack)