Estes 1/2A3-4T Engines/4pk 1504

This is one 1/2A3-4T Model Rocket Engines, (4pk) by Estes Rockets. Please note in store availability and pricing may vary. The Estes 1/2A3-4T 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.