Designed for ''F'' through ''G'' composite hobby rocket motors. Fantastic detailing. Includes blueprint. Precision crafted fins. Fin-Lok fin mounting system. Integrated load distribution structure. Sturdy pre-slotted body tube. Adapters permit useof various size and type Aerotech motors. Motor retention system for quick and easy motor change. Labyrinth ejection gas cooling system. Tangle free shock cord mounting structure. High strength elastic shock cord. Pre-assembled
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