Retainer Assembly, 54mm, PML

Two-Piece Light-Weight Assembly For 54mm PML Motor Mount Tubes
Precision Machined 6061-T6 Aluminum With Mil-Spec Type II Hard Black Anodizing
Large Quick-Turn Threads For Fast, Tool-Free Motor Change
Installation: Simply Bond To Motor Mount Tube With JB Weld® And You`re Done!
Just Slide Motor In And Thread On Cap, That`s It!
Can Be Installed On Existing Rockets With Motor Mount Tubes Extending 1/2" Or More Below Lower Centering Ring