- Cost Effective Rifle
- Amazing Response
- Programmable Trigger
The Double Eagle M904R is a lightweight but extremely effective Airsoft Electric Gun, powered by a Battery in the Stock. It is based around the 'Falcon Fire Control System' which offers a highly programmable and incredibly well-responding Trigger. If you're a fan of staying light on your feet, flanking the enemy and generally causing mayhem, this Airsoft Gun will do you proud on the skirmish field.
Fast Delivery
Delivery & Postage
Here at Patrol Base, we send all our packages from our Warehouse based in the UK with the exception of European Warehouse Items. All of our parcels are sent with specially picked couriers to ensure your parcels get to you on time and in one piece.
For more information please check out our Delivery Information Page.
Estimates
Below are some rough postage prices for orders. Please note these are subject to change and are only a rough guide. For a more accurate postage estimate please use the Postage Calculator at the basket.
UK Standard
£6.95
From
UK 24hr Dispatch
£8.95
From
Highlands / Islands
£24.99*
From
* Please note that Scottish Highlands, and Islands postage prices can vary wildly. Please refer to the Postage Calculator at the basket for the lowest possible price.
Returns
We want you to be absolutely happy with our products and services, so we provide the simple Patrol Base guarantee: if on receiving your item you are unhappy with your item for any reason then simply send it back to us. We will replace or refund the item.
You can return any item for any reason whatsoever, even if you have just changed your mind, within 14 days of receipt of the order. This is in addition to your rights under the Consumer Protection (Distance Selling) Regulations 2000.
For more information on returning products, and how to do it please visit our Returns Policy Page.
Description
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 11.1v Li-Po batteries and prevents the replica from firing when it detects a current draw spike, or if the battery voltage is too low. 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 (a Deans to Mini Tamiya Converter Lead is supplied in the box). Simply open the Stock up fully and remove the back section 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. The Suppressor in the pictures is included with the Rifle, and comes installed out of the box. This can be removed to make use on another Muzzle Device by simply unscrewing it. Underneath you will find a 14mm CCW Thread that is recessed inside the Handguard. The Gun also reportedly features a Quick Change Spring System, which is helpful for those who play at multiple sites, each with different power limits. Or maybe you want to float between Assault Rifle and DMR rules, and like to have the option of both without disassembling the Gearbox.
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. A solid sling loop can be found underneath the Stock, for making use of a One Point Sling Setup, or a Two/Three Point if you were to add another Sling Loop at the front of the Rifle.
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 M904R Fire Control System Edition.
Features
- 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
- Solid sling loop under 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
- Included (removable) suppressor
- 14mm CCW thread
- Six position sliding stock
- Rear wired / Version 2 gearbox
- Low voltage cutoff function - 11.1V LiPo Battery required
- Branded:
- 'FALCON Fire Control System'
- 'DE AIRSOFT'
Package Includes
- Double Eagle M904R 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 LiPo Batteries, and is not compatible with LiFe or NiMh batteries.
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 a modification of the replica, and if you carry out this modification you will not be able to return your replica.
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 twice.
Battery Protection
The FALCON EFCS has an operating voltage between 6-13v. If the voltage is too low or too high the power supply will be cut. If the voltage of your battery is too low, the FALCON will notify the user via 5 vibrations, then cut the power to protect your battery.
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.
Specification
General
|
Assault Rifle
|
---|---|
|
Yes
|
|
Yes,
No,
|
|
Approx. 340fps ± 10%, using 0.20g BB
|
|
Yes
|
|
Yes
|
|
|
|
Starter, Regular Player,
|
|
Li-Po - Never Leave Charging Unattended
Li-Po - Only Use Approved Chargers
Li-Po - Charge in a Fire Safe Area
|
Weight and Dimension
|
Approx. 2.282kg
|
---|---|
|
76cm
|
|
86cm
|
Construction
|
Black
|
---|---|
|
Black
|
|
No
|
|
Alloy suppressor, magazine, stock guides and trim. Polymer handguard, receiver, pistol grip and stock.
|
|
Polymer
Alloy
|
|
Polymer
Alloy
|
Weapon Specific
|
Electric
|
---|---|
|
None
|
|
AR, M4 / AR-15 / M16,
|
|
STANAG, M4 / AR Platform,
|
|
Safe
Semi Automatic
Full Automatic
Burst
Programmable
Binary
|
|
Trigger Lock
|
|
Right Handed
|
|
Standard
|
|
1:1
|
|
0.25g
|
Hop-Up
|
Yes
|
---|---|
|
Rotary
|
|
Behind mock bolt when charging handle to the rear
|
Furniture
|
|
---|---|
|
20mm RIS / RAS , MLOK Rail System,
|
|
Sliding
|
|
6 Position
|
|
Iron Sights
|
|
Stock , QD ,
|
Barrel
|
Male
|
---|---|
|
CCW (Counter Clockwise)
|
|
14mm
|
Magazine Specific
|
High Capacity, AEG,
|
---|---|
|
Approx. 300 Rounds
|
|
Fill Window
|
|
Top
|
Electric Gun Specific Information
Gearbox
|
V2 Gearbox
|
---|---|
|
Rear Wired
|
|
Yes
|
|
Yes
|
Battery Specific
|
Deans ,
Deans To Mini Tamiya Adaptor,
|
---|
Compatible Battery
|
Li-Po
|
---|---|
|
Stick
|
|
11.1v
|
Product Testing Data
|
340FPS
|
---|---|
|
ASG Blaster 0.20g BBs
|
|
07/01/21
|
Detailed Power Tests
FPS
FPS, using 0.20g BB
|
Approx. 340fps, using 0.20g BB
|
---|
Size guide
Joule Charts
Special Instructions
These table can be used as a reference to see if the BB weight you are using will be over acceptable Joulage limits at some Airsoft Sites in the UK. To check if the weight can be used chrono your weapon using the BB you intend to use, and then compare it to the chart.
FPS, Power and Joule Limits can vary from site to site, so please get in touch with where you're going to play with in advance to avoid disappointment.
Suggested limits are based on Joulage Limit rules used Halo Mill: Proving Grounds, with a 350fps limit for Automatic Replicas, 400fps for Semi-Automatic Replicas, and 500fps for Bolt Action Replicas.
Tap the tabs below to open the relevant chart for your replica.
This table should be used for reference, and cannot be used to check one weight against another, as the weight of the BB affects the power.
In order to check if the BB can be used with your replica chronograph using the weight you wish to use and then compare it against the table.
Every time you change weights you will need to re-chrono and check against the table. This is not a conversion chart between weights.
Suggested limits are based on Joulage Limit rules used Halo Mill: Proving Grounds, and is the equivalent of 350fps, using 0.20g BB resulting in an upper limit of 1.14j.
Velocity | BB Weight (Grams) | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
FPS | 0.20 | 0.25 | 0.28 | 0.30 | 0.32 | 0.36 | 0.40 | 0.43 | 0.45 | 0.50 |
250 | 0.58 | 0.73 | 0.81 | 0.87 | 0.93 | 1.05 | 1.16 | 1.25 | 1.31 | 1.45 |
260 | 0.63 | 0.79 | 0.88 | 0.94 | 1.00 | 1.13 | 1.26 | 1.35 | 1.41 | 1.57 |
270 | 0.68 | 0.85 | 0.95 | 1.02 | 1.08 | 1.22 | 1.35 | 1.46 | 1.52 | 1.69 |
280 | 0.73 | 0.91 | 1.02 | 1.09 | 1.17 | 1.31 | 1.46 | 1.57 | 1.64 | 1.82 |
290 | 0.78 | 0.98 | 1.09 | 1.17 | 1.25 | 1.41 | 1.56 | 1.68 | 1.76 | 1.95 |
300 | 0.84 | 1.05 | 1.17 | 1.25 | 1.34 | 1.51 | 1.67 | 1.80 | 1.88 | 2.09 |
310 | 0.89 | 1.12 | 1.25 | 1.34 | 1.43 | 1.61 | 1.79 | 1.92 | 2.01 | 2.23 |
320 | 0.95 | 1.19 | 1.33 | 1.43 | 1.52 | 1.71 | 1.90 | 2.05 | 2.14 | 2.38 |
325 | 0.98 | 1.23 | 1.37 | 1.47 | 1.57 | 1.77 | 1.96 | 2.11 | 2.21 | 2.45 |
328 | 1.00 | 1.25 | 1.40 | 1.50 | 1.60 | 1.80 | 2.00 | 2.15 | 2.25 | 2.50 |
330 | 1.01 | 1.26 | 1.42 | 1.52 | 1.62 | 1.82 | 2.02 | 2.18 | 2.28 | 2.53 |
335 | 1.04 | 1.30 | 1.46 | 1.56 | 1.67 | 1.88 | 2.09 | 2.24 | 2.35 | 2.61 |
340 | 1.07 | 1.34 | 1.50 | 1.61 | 1.72 | 1.93 | 2.15 | 2.31 | 2.42 | 2.68 |
345 | 1.11 | 1.38 | 1.55 | 1.66 | 1.77 | 1.99 | 2.21 | 2.38 | 2.49 | 2.76 |
350 | 1.14 | 1.42 | 1.59 | 1.71 | 1.82 | 2.05 | 2.28 | 2.45 | 2.56 | 2.85 |
355 | 1.17 | 1.46 | 1.64 | 1.76 | 1.87 | 2.11 | 2.34 | 2.52 | 2.63 | 2.93 |
360 | 1.20 | 1.51 | 1.69 | 1.81 | 1.93 | 2.17 | 2.41 | 2.59 | 2.71 | 3.01 |
Suggested limits are based on Joulage Limit rules used at Halo Mill: Proving Grounds, and is the equivalent of 400fps, using 0.20g BB resulting in an upper limit of 1.49j.
Velocity | BB Weight (Grams) | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
FPS | 0.20 | 0.25 | 0.28 | 0.30 | 0.32 | 0.36 | 0.40 | 0.43 | 0.45 | 0.50 |
250 | 0.58 | 0.73 | 0.81 | 0.87 | 0.93 | 1.05 | 1.16 | 1.25 | 1.31 | 1.45 |
260 | 0.63 | 0.79 | 0.88 | 0.94 | 1.00 | 1.13 | 1.26 | 1.35 | 1.41 | 1.57 |
270 | 0.68 | 0.85 | 0.95 | 1.02 | 1.08 | 1.22 | 1.35 | 1.46 | 1.52 | 1.69 |
280 | 0.73 | 0.91 | 1.02 | 1.09 | 1.17 | 1.31 | 1.46 | 1.57 | 1.64 | 1.82 |
290 | 0.78 | 0.98 | 1.09 | 1.17 | 1.25 | 1.41 | 1.56 | 1.68 | 1.76 | 1.95 |
300 | 0.84 | 1.05 | 1.17 | 1.25 | 1.34 | 1.51 | 1.67 | 1.80 | 1.88 | 2.09 |
310 | 0.89 | 1.12 | 1.25 | 1.34 | 1.43 | 1.61 | 1.79 | 1.92 | 2.01 | 2.23 |
320 | 0.95 | 1.19 | 1.33 | 1.43 | 1.52 | 1.71 | 1.90 | 2.05 | 2.14 | 2.38 |
330 | 1.01 | 1.26 | 1.42 | 1.52 | 1.62 | 1.82 | 2.02 | 2.18 | 2.28 | 2.53 |
340 | 1.07 | 1.34 | 1.50 | 1.61 | 1.72 | 1.93 | 2.15 | 2.31 | 2.42 | 2.68 |
350 | 1.14 | 1.42 | 1.59 | 1.71 | 1.82 | 2.05 | 2.28 | 2.45 | 2.56 | 2.85 |
360 | 1.20 | 1.51 | 1.69 | 1.81 | 1.93 | 2.17 | 2.41 | 2.59 | 2.71 | 3.01 |
370 | 1.27 | 1.59 | 1.78 | 1.91 | 2.03 | 2.29 | 2.54 | 2.73 | 2.86 | 3.18 |
380 | 1.34 | 1.68 | 1.88 | 2.01 | 2.15 | 2.41 | 2.68 | 2.88 | 3.02 | 3.35 |
390 | 1.41 | 1.77 | 1.98 | 2.12 | 2.26 | 2.54 | 2.83 | 3.04 | 3.18 | 3.53 |
400 | 1.49 | 1.86 | 2.08 | 2.23 | 2.38 | 2.68 | 2.97 | 3.20 | 3.34 | 3.72 |
410 | 1.56 | 1.95 | 2.19 | 2.34 | 2.50 | 2.81 | 3.12 | 3.36 | 3.51 | 3.90 |
Suggested limits are based on Joulage Limit rules used at Halo Mill: Proving Grounds, and is the equivalent of 500fps, using 0.20g BB resulting in an upper limit of 2.32j.
Velocity | BB Weight (Grams) | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
FPS | 0.20 | 0.25 | 0.28 | 0.30 | 0.32 | 0.36 | 0.40 | 0.43 | 0.45 | 0.50 |
250 | 0.58 | 0.73 | 0.81 | 0.87 | 0.93 | 1.05 | 1.16 | 1.25 | 1.31 | 1.45 |
260 | 0.63 | 0.79 | 0.88 | 0.94 | 1.00 | 1.13 | 1.26 | 1.35 | 1.41 | 1.57 |
270 | 0.68 | 0.85 | 0.95 | 1.02 | 1.08 | 1.22 | 1.35 | 1.46 | 1.52 | 1.69 |
280 | 0.73 | 0.91 | 1.02 | 1.09 | 1.17 | 1.31 | 1.46 | 1.57 | 1.64 | 1.82 |
290 | 0.78 | 0.98 | 1.09 | 1.17 | 1.25 | 1.41 | 1.56 | 1.68 | 1.76 | 1.95 |
300 | 0.84 | 1.05 | 1.17 | 1.25 | 1.34 | 1.51 | 1.67 | 1.80 | 1.88 | 2.09 |
310 | 0.89 | 1.12 | 1.25 | 1.34 | 1.43 | 1.61 | 1.79 | 1.92 | 2.01 | 2.23 |
320 | 0.95 | 1.19 | 1.33 | 1.43 | 1.52 | 1.71 | 1.90 | 2.05 | 2.14 | 2.38 |
330 | 1.01 | 1.26 | 1.42 | 1.52 | 1.62 | 1.82 | 2.02 | 2.18 | 2.28 | 2.53 |
340 | 1.07 | 1.34 | 1.50 | 1.61 | 1.72 | 1.93 | 2.15 | 2.31 | 2.42 | 2.68 |
350 | 1.14 | 1.42 | 1.59 | 1.71 | 1.82 | 2.05 | 2.28 | 2.45 | 2.56 | 2.85 |
360 | 1.20 | 1.51 | 1.69 | 1.81 | 1.93 | 2.17 | 2.41 | 2.59 | 2.71 | 3.01 |
370 | 1.27 | 1.59 | 1.78 | 1.91 | 2.03 | 2.29 | 2.54 | 2.73 | 2.86 | 3.18 |
380 | 1.34 | 1.68 | 1.88 | 2.01 | 2.15 | 2.41 | 2.68 | 2.88 | 3.02 | 3.35 |
390 | 1.41 | 1.77 | 1.98 | 2.12 | 2.26 | 2.54 | 2.83 | 3.04 | 3.18 | 3.53 |
400 | 1.49 | 1.86 | 2.08 | 2.23 | 2.38 | 2.68 | 2.97 | 3.20 | 3.34 | 3.72 |
410 | 1.56 | 1.95 | 2.19 | 2.34 | 2.50 | 2.81 | 3.12 | 3.36 | 3.51 | 3.90 |
420 | 1.64 | 2.05 | 2.29 | 2.46 | 2.62 | 2.95 | 3.28 | 3.52 | 3.69 | 4.10 |
430 | 1.72 | 2.15 | 2.40 | 2.58 | 2.75 | 3.09 | 3.44 | 3.69 | 3.86 | 4.29 |
440 | 1.80 | 2.25 | 2.52 | 2.70 | 2.88 | 3.24 | 3.60 | 3.87 | 4.05 | 4.50 |
450 | 1.88 | 2.35 | 2.63 | 2.82 | 3.01 | 3.39 | 3.76 | 4.04 | 4.23 | 4.70 |
460 | 1.97 | 2.46 | 2.75 | 2.95 | 3.15 | 3.54 | 3.93 | 4.23 | 4.42 | 4.91 |
470 | 2.05 | 2.57 | 2.87 | 3.08 | 3.28 | 3.69 | 4.10 | 4.41 | 4.62 | 5.13 |
480 | 2.14 | 2.68 | 3.00 | 3.21 | 3.42 | 3.85 | 4.28 | 4.60 | 4.82 | 5.35 |
490 | 2.23 | 2.79 | 3.12 | 3.35 | 3.57 | 4.02 | 4.46 | 4.80 | 5.02 | 5.58 |
500 | 2.32 | 2.90 | 3.25 | 3.48 | 3.72 | 4.18 | 4.65 | 4.99 | 5.23 | 5.81 |
510 | 2.42 | 3.02 | 3.38 | 3.62 | 3.87 | 4.35 | 4.83 | 5.20 | 5.44 | 6.04 |