Select a category... Shop Kits and Parts QUASAR ONE CUSTOM ROCKET KITS MODEL ROCKET PARTS. ROCKET DECALS. ESTES ROCKET KITS ESTES ROCKET PARTS ESTES ROCKET MOTORS     Back

ENGINE CENTERING RINGS 13MM TO BT-20 ROCKET TUBE. You get (5) black fiber centering rings in a package.  The rings are for use with the T5-EMT rocket motor tube.  Use them when you want to take an Estes mini "A" type rocket motor tube and install it into a BT-20 type rocket tube. CLICK ON IMAGE TO ENLARGE. Item #CR520-F Price: $1.79  Sale price $1.10

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