armoury
DOUBLE EAGLE M904A FCS
to SAFE mode before connecting the battery to boot the
system and in terms of protection to the electronics, the
904 is extremely tactile! As stated earlier, the FALCON is
compatible with 7.4v and 11.1v LiPo batteries 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 give you
five vibrations, indicating the voltage is too low. 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. That’s a LOT
of “good vibrations” that will both protect and extend the
operating life of your AEG! In short the vibrations equate
directly to:
• 1 - Power On
• 2 - System Error
• 3 - Voltage too high
• 5 - Low Voltage
In addition to the safety elements of the EFCS there is of
course also the performance function, which offers you
all those different shot-modes and trigger sensitivity. To
engage the “burst” function:
• 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.
Now personally I do like to be able to set the trigger exactly
as I like it, and this is a feature of the EFCS that I therefore
LOVE! To adjust this:
• 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 (once Highest Sensitivity, twice Standard
Sensitivity, thrice Low Sensitivity).
If you want to set everything back to “Factory Default”
then that’s simple too, as you just set the fire select to
SAFE then pull the trigger and hold for 5 seconds to reset
everything to bog-standard.
With all this worked out I loaded the 300BB windermag
up with a full complement of my usual RZR 2.0g test
BBs and got to work. Ten BBs through the chrono gave
me a perfectly acceptable mean of 1.0 Joule/329fps; as
I’d asked Taiwangun to set up the 904 to their “medium”
power setting (they offer pre-setting the AEG you get to
Standard/400fps, Medium/340fps, or Low/290fps to take
into account different legal restrictions internationally these
days!) this was perfectly acceptable and made the AEG
“game ready” for any local field. Setting targets out to 30
metres I was able to get reasonable groupings on semiauto,
with things opening out marginally when I switched
the selector up to full; my thought is that with a bit of care
and extra fettling you could really have a very, very accurate
carbine on your hands here, although it’s no slouch straight
out of the box.
The thing that REALLY gives the 904 the edge over
other “burst” replicas though is the amount of choice you
get from the EFCS. Squeeze the trigger and you get a BB
away in a flash! Squeeze again… Crack! Then switch the
ambidextrous selector up to full auto and choose anything
from “full chat” through to five round burst! With the
trigger set to “Highest Sensitivity” and on three round burst
this is just about perfection for me.
In a nutshell this is a “budget AEG” only in terms of
price, as the look, feel and finish even of the polymer
parts are great and it works perfectly out of the box. You
get everything that most “entry-level-priced” AEGs offer
in a short, sweet package with the extra benefit of the
EFCS. The DE Airsoft M904A has a retail price under 150
quid in the UK right now, which for what you’re getting is
extremely good value for money. It seems to me that DE
Airsoft have given us a taste of their intentions and I for
one look forward to seeing what they do next!
My thanks go to www.taiwangun.com for supplying the
M904A, and please do pay them a visit to check out the full
range of styles and options from DE Airsoft. AA
“THE THING THAT REALLY GIVES THE 904 THE EDGE OVER OTHER “BURST” REPLICAS
THOUGH IS THE AMOUNT OF CHOICE YOU GET FROM THE EFCS. SQUEEZE THE TRIGGER
AND YOU GET A BB AWAY IN A FLASH! SQUEEZE AGAIN… CRACK!”
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