This Airsoft Electric Gun is based on the M4/AR Platform which will make it very familiar to anyone who has used the platform before. Featuring a lightweight but incredibly tough construction that is mainly reinforced Polymer, this Airsoft Gun is perfect for those who like to get up in the enemy’s personal space.

If you’re looking for an AEG with some truly unique features you’ve come to the right place: the replica features Double Eagles latest creation, the FALCON EFCS Fire Control System. Usually only seen in custom builds and high end AEG this feature is a welcome inclusion, allowing for 1-5 round burst mode, a binary trigger, as well as various gun and battery protection features to boot. The 1-5 round burst mode and bump fire settings can also be set at the same time, with binary being used in semi-auto mode, and 1-5 round burst replacing the full auto mode. The fire control system is designed to be used with 7.4v Li-Po and 11.1v Li-Po and prevents the replica from firing when it detects a current draw spike, or if the battery voltage is too low. Please note that an 11.1v LiPo is only recommended by the manufacturer on the grounds that the replica is firing above 330FPS. Please avoid the use of an 11.1v Battery. The EFCS fire system is configurable using simple trigger pulls and requires no external tools, special adapters or a PC to function. For more information please see the Special Instructions Section.

The gun features a typical AR platform layout, with an Ambidextrous Safe/Semi/Auto Fire Selector (which can be programmed without the need for tools), but notably a Flat Blade Trigger and Ergonomic Charging Handle. Not only do these parts look awesome, but they make the handling and operation of the rifle much easier. The Battery is stored in the Stock, where you will find a Deans Connector inside the Buffer Tube (a Deans to Mini Tamiya Converter Lead is supplied in the box). Simply pull down on the exposed tabs either side of the Stock and pull it off the back of the Buffer Tube to access the Battery Compartment. The Gun also features a Rotary HOP Unit which is accessible behind the Mock Bolt / Dust Cover. Simply pull back on the Charging Handle to expose it and make adjustments. This will apply backspin to your BBs and help achieve a better flight path, when given the right settings for the BB weight and location.

If you’re looking to modify the furniture on the gun you have plenty of options, with a full top length 20mm RIS / RAS rail for attaching red dots, holographic, and even large sight and scope set ups, and an MLOK handguard for attaching modular components. If the stock of the replica isn’t to taste it can be removed/replaced, as well as the front flash hider for replacing with suppressors and tracer units. The Stock has QD Sling Sockets which can be used to install Quick Release Sling Loops.

Included in the box is a 300rnd High Capacity Magazine, which is filled with BBs from the top via the Fill Window, and then wound at the bottom of the Mag to start feeding BBs into the gun. If you’re looking for an incredibly smart Airsoft Gun with some unique external furniture as well as a solid Alloy body, then you can’t go wrong with the Double Eagle M908B M4 AEG w/ Falcon Fire Control System.


  • FALCON Fire Control System
  • Based on the M4 / AR Platform
  • Electric powered Airsoft AEG
  • FALCON EFCS Gearbox and Battery Protection
  • 1-5 Shot Fire selection mode
  • Trigger sensitivity adjustment
  • Binary Trigger mode
  • Binary fire select for semi auto
  • 1-5 Shot fire select for full auto mode
  • MLOK handguard
  • QD sling sockets on stock
  • Mock charging handle which pulls back to reveal the hop-up unit
  • Mock bolt release which releases the mock bolt plate
  • Ergonomic charging handle
  • Ambidextrous magazine release
  • Radial adjustable hop-up unit for accuracy and precision
  • Straight, flat trigger
  • Textured ergonomic pistol grip
  • Adjustable motor screw height
  • Flip up removable ironsights for 20mm RIS/RAS rail
  • Full top length 20mm RIS / RAS rail
  • Removable flash hider
  • 14mm CCW thread
  • Six position sliding stock
  • Rear wired / Version 2 gearbox
  • Rubberised butt plate
  • Branded:
    • ‘FALCON Fire Control System’
    • ‘DE AIRSOFT’

Package Includes

  • Double Eagle M904F Fire Control System Edition
  • Deans to Mini Tamiya Converter Lead
  • 300rnd High Cap Magazine
  • Instruction Manual

Special Instructions

Please note that the gun’s EFCS system is only compatible with 7.4v LiPo and 11.1v LiPo, and is not compatible with LiFe or NiMh battery.

Please note that both binary fire and burst modes can be set, as binary fire is applied to semi, and 1-5 fire mode is applied to full auto.

Please note that fitting the supplied deans connector will constitute modification of the replica, and will not be able to be returned.

FALCON EFCS Protection Feature

Gearbox Protection

When the current is too high or abnormal the power supply on the EFCS will disconnect to protect the motor and battery, and the motor will vibrate three times.

If the voltage of the battery is too high the EFCS power supply will automatically disconnect and the motor will vibrate two times.

Battery Protection

The FALCON is compatible with 7.4v and 11.1v LiPo battery only, with an operating voltage between 6-13v. If the voltage is too low or too high the power supply will be cut.

When using an 11.1v LiPo the low voltage protection system will notify the user via 5 vibrations, indicating the batteries voltage is too low to be used.

Vibration Description

  • 1 – Power On
  • 2 – System Error
  • 3 – Voltage too high
  • 5 – Low Voltage

Falcon Electronic Fire Control System

1-5 Shot Mode

  • Set the fire select to SAFE.
  • Pull the trigger and hold for 3 seconds to enter programming mode, and release when the motor makes a sound.
  • Pull the trigger once and release to enter 1-5 shot programming mode, release when the motor makes a sound.
  • Pull the trigger 1-5 times depending on the amount of shots you want a single trigger pull to make.
  • Set the fire select to full auto.

Trigger Sensitivity

  • Set the fire select to SAFE.
  • Pull the trigger and hold for 3 seconds to enter programming mode, and release when the motor makes a sound.
  • Pull the trigger twice and release to enter sensitivity programming mode, release when the motor makes a sound.
  • Pull the trigger between 1-3 times for different levels of sensitivity.
    • 1 – Highest Sensitivity
    • 2 – Standard Sensitivity
    • 3 – Low Sensitivity

Binary Fire Mode

  • Set the fire select to SAFE.
  • Pull the trigger and hold for 3 seconds to enter programming mode, and release when the motor makes a sound.
  • Pull the trigger three times and release to enter bump fire programming mode, release when the motor makes a sound.
  • Set the fire selector to semi-auto
  • Repeat the same process to disable bump fire

Reset to Default

  • Set the fire select to SAFE.
  • Pull the trigger and hold for 5 seconds to reset all settings.

The externals of the replica are metal where they would be on the real world gun. This includes things like the outer barrel, handguard, and receiver. If a real world gun has polymer parts then the gun will still be marked as full metal externals, examples of this would be an M4, where the Stock and Pistol grip are always made from Polymer.


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