Estes Rocket motors B6-4 (Pk3)

Estes Rocket motors B6-4 (Pk3)

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.