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BackDraft Innovations Phoenix HPA Engine + FCU
BackDraft Innovations Phoenix HPA Engine + FCU
BackDraft Innovations Phoenix HPA Engine + FCU
BackDraft Innovations Phoenix HPA Engine + FCUBackDraft Innovations Phoenix HPA Engine + FCUBackDraft Innovations Phoenix HPA Engine + FCU

BackDraft Innovations Phoenix HPA Engine + FCU

$249.99

Convert your M4 AEG into a responsive HPA platform with the Backdraft Phoenix Engine and Catalyst Gen 2 FCU. Built for most Version 2 gearboxes, it delivers programmable fire modes, efficient airflow, rapid trigger response, and 40+ RPS performance.


Order today for same-day fulfillment • Estimated delivery Sep 21–22
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Backdraft Phoenix M4 HPA Engine + Catalyst Gen 2 FCU

Convert your compatible M4 AEG into a fast, responsive HPA airsoft platform with programmable fire modes, efficient airflow, and an impressive 40+ rounds-per-second capability.

Product Overview

The Backdraft Phoenix M4 HPA Engine is an affordable electronic HPA conversion system designed for most Version 2 gearbox airsoft rifles. Its responsive pneumatic operation provides rapid trigger response, consistent cycling, and tunable performance for competitive play, speedsoft, and recreational skirmishing.

Paired with the included Catalyst Gen 2 Fire Control Unit, the Phoenix supports safe, semi-automatic, full-automatic, binary, two-round burst, and three-round burst modes. The system can achieve rates of fire exceeding 40 RPS when properly configured, while adjustable regulator pressure and FCU settings allow users to tune performance for their replica and field limits.

Features & Benefits

  • Responsive electronic HPA operation

  • Capable of 40+ rounds per second

  • Multiple programmable fire modes

  • Efficient airflow for improved shot capacity

  • Quick-disconnect inner grip line

  • Complete M4/V2 conversion package

Specifications

  • Engine length with nozzle: approximately 90mm

  • Maximum input pressure: 130 PSI

  • Nozzle: Backdraft #01

  • Inner grip line: approximately 235mm

  • Manufacturer: Backdraft Innovations

Compatibility

Designed for most M4-style AEGs using Version 2 gearboxes. The included #01 nozzle is intended for common M4 and MP5 configurations; fitment can vary between manufacturers, and another nozzle length may be required.

What’s Included

  • Phoenix HPA engine with #01 nozzle

  • Catalyst Gen 2 FCU

  • M4 trigger board

  • Selected wire harness

  • Inner grip line with quick-disconnect fitting

  • Instruction manual

Installation

Installation requires opening the gearbox, removing the original electric components, and correctly aligning the engine and nozzle. Professional installation and chronograph tuning are recommended. HPA tank, regulator, remote line, and FCU battery are sold separately.

Common Product Questions

Find quick answers about our airsoft products, shipping and policies.

Can LA Airsoft install this part for me?

Yes. We can build and upgrade Hi-Capas, AAP platforms, and rifles. Choose your base gun and parts, then add the appropriate tech service.

The current custom-build service states that builds are normally completed in approximately 3 to 5 days, with the team reviewing the selected parts for compatibility.

Do I need tools or gunsmithing?

That depends on the upgrade. Simple external parts may be straightforward, but internal upgrades can require disassembly, reassembly, adjustment and testing.

If you are not comfortable working inside your airsoft gun, our team offers professional tech and custom-build services.

How quickly will my order ship?

Orders without preorder items are typically packed the same day when placed before 4:30 p.m. Central Time. Please note that occasional delays can occur during especially busy periods or when staffing is limited.

How should I maintain this product?

Regular maintenance helps preserve performance and reliability. Keep the product clean, follow the manufacturer’s lubrication instructions, and properly manage batteries, gas systems, and internal components. More advanced repairs or internal servicing should be handled by an experienced airsoft technician.

Will this part fit my platform?

Compatibility is product-specific. Check the brand, model, size, and platform named in the product description, such as Tokyo Marui Hi-Capa 4.3 or 5.1, AAP-01, Umarex/VFC Glock, or a particular AEG gearbox type.

Similar-looking parts are not always interchangeable, so contact our team with your exact model if you are unsure.

Will this part increase my FPS?

Not every upgrade increases FPS. Some parts are designed primarily for reliability, cycling speed, weight reduction, or gas efficiency. When a product has a tested FPS claim, it should be stated in the listing.