29mm to 38mm adapter for use with Aeropack 38 mm motor retainers only.

• Ready to use!
• Precision Machined and Type II Black Anodized 6061-T6 Aluminum
• A2938 Fits 29mm Motors to Rockets with 38mm Retainers
• No Need To Buy a Separate Motor Retainer
• Everything Slides In & Out Easily with No Friction Fitting
• Adapter and Motor Install in Seconds
• Motor is Retained from Moving Forward or Backward