Estes Rockets EST1507 - A3-4T Model Rocket Engines (4pk)
Estes Rockets - EST1507 - A3-4T Model Rocket Engines (4pk)
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The Estes A3-4T is a single stage engine designed for model rocket flight. It is a mini engine designed for flights in lightweight rockets. Each package includes 4 engines, 4 starters, and 4 starter plugs.