A3854 Aero pack Motor Adapter Assembly - 38mm to 54mm

Adapter Assembly, 38-54mm Features include: Completely assembled and ready to use! Precision Machined and Type II Black Anodized 6061-T6 Aluminum A3854 Fits 38mm Motors to Rockets with 54mm Retainers No Need To Buy a Separate Motor Retainer Everything Slides In & Out Easily with No Friction Fitting The adapter and Motor are installed in Seconds The motor is Retained from Moving Forward or Backward Please note that this isn't an exact fit for LOKI and Research Motor Hardware. Any manipulation of this adapter will void the warranty. These WILL work with LOC Pro 54mm Retainers!