---
product_id: 731857965
title: "United Model A8-3 B4-4 B6-4 Mini Bulk Pack with 9 Engines Total"
brand: "skinmed"
price: "HK$1242"
currency: HKD
in_stock: true
category: "Skinmed"
url: https://www.desertcart.hk/products/731857965-united-model-a8-3-b4-4-b6-4-mini-bulk
store_origin: HK
region: Hong Kong
---

# Includes starter & plug for instant launches Supports rockets from under 3 oz to heavy models 9 engines total for versatile flights United Model A8-3 B4-4 B6-4 Mini Bulk Pack with 9 Engines Total

**Brand:** skinmed
**Price:** HK$1242
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate your rocket game with the ultimate 9-engine bulk pack!

## Quick Answers

- **What is this?** United Model A8-3 B4-4 B6-4 Mini Bulk Pack with 9 Engines Total by skinmed
- **How much does it cost?** HK$1242 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/731857965-united-model-a8-3-b4-4-b6-4-mini-bulk)

## Best For

- skinmed enthusiasts

## Why This Product

- Trusted skinmed brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Trusted Bulk Pack:** Amazon bestseller status ensures quality and reliability for hobbyists
- • **Ready-to-Launch Kit:** Starter and plug included for hassle-free ignition every time
- • **Altitude Range Mastery:** From low altitude beginner flights to high-flying heavy rockets, all bases covered
- • **Perfect for Skill Growth:** Ideal for mastering rocket flight dynamics across multiple rocket sizes
- • **Versatile 9-Engine Combo:** Three A8-3, B4-4, and B6-4 engines cover beginner to advanced flights

## Overview

The United Model A8-3 B4-4 B6-4 Mini Bulk Pack includes 9 engines (3 each of A8-3, B4-4, and B6-4) designed for rockets ranging from under 3 ounces to heavy models. It comes with a starter and plug for easy ignition, making it perfect for hobbyists seeking versatile, reliable rocket propulsion for low to medium altitude flights.

## Description

Product description Estes A8-3, B4-4, B6-4 Mini Bulk Pack 1 per package Includes a total of 9 engines Directions Please check the model rocket and engine compatibility before use. Launch the rocket using the included engine starter and plug

## Features

- Combo pack includes a total of 9 engines - 3 A8-3, 3 B4-4 and 3 B6-4 engines. Starter and plug included NOTE: Please make sure these engines are compatible with your rocket model before purchasing
- All the engines needed for rocket flight for low and medium altitude models!
- The A8-3 is a single stage engine designed for flight on rockets weighing less than 3 ounces including the engine. Perfect for first flight or small airfield, you can get used to rocket performance and airport landing location
- The B4-4 engine is suitable for use with rockets weighing approximately 1 to 2 ounces. This is typically 1-2 feet tall rocket. Almost twice the altitude compared to A8-3
- The B6-4 is a medium impulse engine for high flying. Great for launching large and heavy rockets

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09QP9544K |
| Amazon Bestseller | #972,596 in Hobbies ( See Top 100 in Hobbies ) #564 in Spacecraft Model Kits |
| Batteries Included | No |
| Batteries Required? | No |
| Date First Available | August 10, 2023 |
| Manufacturer recommended age | 0 - 10 years |
| Manufacturer reference | 980206 |
| Material Type(s) | Plastic |
| Target Gender | Unisex |

## Images

![United Model A8-3 B4-4 B6-4 Mini Bulk Pack with 9 Engines Total - Image 1](https://m.media-amazon.com/images/I/91gJoKxs+WL.jpg)
![United Model A8-3 B4-4 B6-4 Mini Bulk Pack with 9 Engines Total - Image 2](https://m.media-amazon.com/images/I/81b5gvj2a2L.jpg)
![United Model A8-3 B4-4 B6-4 Mini Bulk Pack with 9 Engines Total - Image 3](https://m.media-amazon.com/images/I/71fpz9oNNZL.jpg)
![United Model A8-3 B4-4 B6-4 Mini Bulk Pack with 9 Engines Total - Image 4](https://m.media-amazon.com/images/I/51FoGm4xjOL.jpg)

## Frequently Bought Together

- United Model A8-3, B4-4, B6-4 Mini Bulk Pack - Includes a Total of 9 Engines
- Estes 2274 Recovery Wadding
- Estes 1491 Taser Rocket Launch Set, Beginner Flying-Rocket-Model Building Kit for Ages 10+, Includes Launch Pad System

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**Shop now:** [https://www.desertcart.hk/products/731857965-united-model-a8-3-b4-4-b6-4-mini-bulk](https://www.desertcart.hk/products/731857965-united-model-a8-3-b4-4-b6-4-mini-bulk)

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-03-04*