A5475, Adapter Assembly, 54-75mm

Adapter Assembly, 54-75mm Features include: For fitting 54mm motors in rockets with RA75 motor retainers. Precision CNC machined 6061-T6 aluminum components. Type II black anodized for wear and corrosion resistance. Centering ring includes stainless steel socket head cap screw. Allows a quick change between 54mm and 75mm motors. Holds motor from moving forward and backwards. (Aeropack)