38 mm Aluminum Rocket Motor Retainer for Madcow and Rocketarium paper, PML and GLR phenolic, Hawk Mt, Performance Rocketry and Madcow fiberglass (1.65" OD)
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Precision Machined 6061-T6 Aluminum With Mil-Spec Type II Black Anodizing
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Large Quick-Turn Threads For Fast, Tool-Free Motor Change
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Installation: Simply Bond To Motor Mount Tube With JB Weld And You`re Done!
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Just Slide Motor In And Thread On Cap, That's It!
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Can Be Installed On Existing Rockets With Motor Mount Tubes Extending 3/8" Or More Below Lower Centering Ring