TA5439LB, Tailcone Retainer Assembly, 54mm MMT to 3.9" AF, L, Black Anodize

Tailcone Retainer Assembly, 54mm MMT to 3.9" AF, L, Black Anodize Complete Tailcone Retainer Assemblies For 54mm Motor Mount Tubes `L` and 3.9 I.D. Airframes Same Tool-Free Thread-On Attachment As Our Standard Retainers Precision Machined 6061-T6 Aluminum With Mil-Spec Type II Black Anodizing Detailed Internal Profiles Provide Light Weight Cones Can Be Used On More Than One Rocket To Save Cost (Aeropack)