1606 - B6-4 Engines <Ground Shipping Required>
The Estes B6-4 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, 3 igniters and 4 igniter plugs.
Shipping regulations require all motors to be shipped via ground transportation. Smaller motors may be shipped using the US Postal Service. eRockets is an authorized shipper of motors via USPS.
This motor can be shipped via United States Postal Service (USPS) Parcel Select inside the United States ONLY, you must select that shipping service for your order at checkout.