Backdraft Phoenix M4 HPA Engine with FCU Long Form - (Orange)
Backdraft Phoenix M4 HPA Engine with FCU Long Form - (Orange)
    Backdraft Phoenix M4 HPA Engine with FCU Long Form - (Orange)
    Backdraft Phoenix M4 HPA Engine with FCU Long Form - (Orange)
Backdraft Phoenix M4 HPA Engine with FCU Long Form - (Orange)
Backdraft Phoenix M4 HPA Engine with FCU Long Form - (Orange)
Backdraft Phoenix M4 HPA Engine with FCU Long Form - (Orange)
Backdraft Phoenix M4 HPA Engine with FCU Long Form - (Orange)
    Backdraft Phoenix M4 HPA Engine with FCU Long Form - (Orange)
    Backdraft Phoenix M4 HPA Engine with FCU Long Form - (Orange)
Backdraft Phoenix M4 HPA Engine with FCU Long Form - (Orange)
Backdraft Phoenix M4 HPA Engine with FCU Long Form - (Orange)

Description, Features & Specifications

Description
Specifications

- Brand: Backdraft Phoenix
- Compatibility: M4-style airsoft gearboxes
- Length: Long
- Rate of Fire: 40+ rounds per second
- PSI Range: 40 to 130 PSI
- Fire Mode Adjustment: On-the-fly
- Engine Type: High-performance, low-maintenance HPA
- Solenoid: Adjustable (new version included)
- FCU: Modular Fire Control Unit
- Trigger Board: M4 trigger board included
- Wire Harness: Grip or stock length options
- Air Line: Inner grip line with brass quick disconnect
- Application: Airsoft HPA builds seeking performance and value

Features

- Complete HPA engine system for M4-style gearboxes
- Delivers over 40 rounds per second for extreme firepower
- Operates within a flexible PSI range of 40 to 130 for tuning precision
- Integrated adjustable solenoid for fine-tuned performance
- Supports on-the-fly fire mode adjustment without tools
- Built for high performance with minimal maintenance
- Engineered for high reliability in demanding conditions
- Modular FCU (Fire Control Unit) included for advanced programming
- Includes M4 trigger board for drop-in compatibility with standard M4 gearboxes
- Comes with a wire harness available in grip or stock length
- Includes inner grip air line with durable brass quick disconnect fitting
- Excellent value HPA system with full-feature capabilities at a competitive price

Package Includes: 1x HPA Engine Kit
Description
Specifications

- Brand: Backdraft Phoenix
- Compatibility: M4-style airsoft gearboxes
- Length: Long
- Rate of Fire: 40+ rounds per second
- PSI Range: 40 to 130 PSI
- Fire Mode Adjustment: On-the-fly
- Engine Type: High-performance, low-maintenance HPA
- Solenoid: Adjustable (new version included)
- FCU: Modular Fire Control Unit
- Trigger Board: M4 trigger board included
- Wire Harness: Grip or stock length options
- Air Line: Inner grip line with brass quick disconnect
- Application: Airsoft HPA builds seeking performance and value

Features

- Complete HPA engine system for M4-style gearboxes
- Delivers over 40 rounds per second for extreme firepower
- Operates within a flexible PSI range of 40 to 130 for tuning precision
- Integrated adjustable solenoid for fine-tuned performance
- Supports on-the-fly fire mode adjustment without tools
- Built for high performance with minimal maintenance
- Engineered for high reliability in demanding conditions
- Modular FCU (Fire Control Unit) included for advanced programming
- Includes M4 trigger board for drop-in compatibility with standard M4 gearboxes
- Comes with a wire harness available in grip or stock length
- Includes inner grip air line with durable brass quick disconnect fitting
- Excellent value HPA system with full-feature capabilities at a competitive price

Package Includes: 1x HPA Engine Kit

Earn 0 points on this purchase.

Learn more

Choose Your Membership

Select a plan that works for you

XTREME Superstore by Backdraft Phoenix

BD-PHX-M4-V2

Backdraft Phoenix M4 HPA Engine with FCU Long Form - (Orange)

$250.00
$250.00
Shipping calculated at checkout.
Get FREE Returns within 14 days.
Add Free Returns to your cart for extra peace of mind.

XTREME Returns

As a small business, we face a choice: we can either raise all of our prices to cover the cost of returns, or we can keep our prices low and offer an optional Return Guarantee. We chose the second option because it's fairer to you. That $5 goes directly toward the logistics of a pre-paid return, meaning you get a "no-questions-asked" experience without us having to inflate the cost of every item in our shop. It keeps us independent and keeps your wallet happy. When you shop with us, your order isn’t just a number—it’s handled by a small team that cares about the gear we sell. Because we don't have the massive overhead of a giant company, we use this $5 guarantee to bridge the gap. It provides you with a pre-paid, priority return path, ensuring that if you need to send something back, we can process it immediately and get your refund or exchange moving. Thank you so much for understanding.
Free fast shipping on orders $50+
For all Superstore Plus Members. Otherwise, orders $199+. Excludes heavy items like Bulk BB Bags.

Free Shipping

Get free shipping on all orders above $200. This excludes certain items such as bulk BBs, or any sort of item that requires special handling (such as hazmat).
Pay any way you want, securely.
We accept all major cards, Afterpay, PayPal, Crypto, Apple Pay, Cash App & More. Obviously, all payment info is encrypted.

Payment Methods

We accept a wide variety of payment methods to ensure our customers can get what they want from us without hassle. Like many online stores, we use Shopify Payments. Their platform, which is partnered with Stripe, is secure. Looking for a payment method which is currently unavailable? Please let us know! We will look into it ASAP.
Free In Store Pickup!
Pick your items up at our field for FREE.

Free In Store Pickup!

Ship your item to our store free! We will ship your item directly to our shop if we don't have it there already. Otherwise, you can just pick up your item immediately if it's currently stocked in store.

Join our Rewards Program and earn points on every order! No other Airsoft shop has a system like this!

Join Now

Check Out These Related Products

Best Sellers