Estes 1507 - A3-4T Engines (4 Pack)

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ENGINES FOR MODEL ROCKETS 4 – A3-4T Engines4 – Starters4 – Starter Plugs The Estes A3-4T engine is single stage engine designed for model rocket flight. This engine is a mini engin e designed for flights in lightweight rockets. Each package includes 4 engines, 4 starters and 4 starter plugs.PLEASE NOTE: This item will ship by US Postal Service only. You MUST HAVE a physical mailbox or post office box for delivery. Show more