The Estes B4-2 engine is single stage engine designed for model rocket flight. This engine is a standard engine designed for flights in rockets weighing less than 4 ounces, including the engine. Each package includes 3 engines, 4 starters and 4 plugs.
Estes B4-2 Standard Rocket Engines (3)
Original price was: $9.59.$6.38Current price is: $6.38.
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