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Echo1 Special Operations Branch SOB-II Full Metal Airsoft AEG Rifle

ID: 37001 (AEG-E1-SOB2)
ECHO1 / JAG37001
4.5 stars, based on 8 reviews
z Echo1 Special Operations Branch SOB-II Full Metal Airsoft AEG Rifle
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Sorry, this item is Discontinued

MAP ProtectedExempt From Coupons
The manufacturer of this product enforces a strict minimum advertised price (MAP) policy which excludes this product from any additional discount coupon codes. This item, however, may qualify for free shipping.

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*Scope and Vertical Grip not included

Echo1 Special Operations Branch SOB-II Full Metal Airsoft AEG Rifle

  • Full Metal Upper Receiver and RIS
  • Nylon Fiber Lower Receiver, Motor Grip, and Stock
  • Full Length Upper Rail for optics
  • Front RIS perfect for tactical accessories
  • Folding LE Stock
  • Unique Straight Metal Hi-Cap Magazines
  • Compact Size perfect for CQB

  • Length: 380mm / 565mm-650mm (Folded / Adjustable)
    Muzzle Velocity: 350~360 FPS (Measured with 0.20g BBs)
    Magazine Capacity: 200 round metal hi-cap included. Uses Echo1, Matrix, Tokyo Marui, and other similar MOD5 series AEG Magazines
    Gearbox: Full Metal Ver 3, Pre-Upgraded
    Hopup: Yes, Adjustable
    Motor: Short Type
    Battery: 8.4v Stick Type recommended (Wired to front hand guard compartment)
    Fire Modes: Semi/Full-Auto, Safety
    Package Includes: Gun, Magazine, Battery, Charger

    FPS Range: 350-360

    California residents click here for Proposition 65 warning

    About ECHO1 / JAG

    Since its inception the Echo1USA brand has strived to provide our clients with uncompromising quality of products and customer service. As avid Airsoft players ourselves, we are able to understand the needs of the sport and the frustration with inferior products. Our commitment to yielding the finest most affordable Airsoft Guns and Accessories on the market today is steadfast, and remains the foundation of our continued success.

    8 Customer Reviews

    (Write a review)

    by Michael G. on 09/11/2015
    "At the time of me writing this, the SOB-II has been discontinued; however I feel that my review may be useful for someone looking to buy the gun second-hand.

    I received this gun in a Box of Awesomeness a while ago, since then I've carried this gun through many skirmishes and it has served me well.

    Although it may not be readily apparent, the base gun for the SOB-II is an MP5K. This means it can accept the wide variety of parts offered for the MP5K. I ended up swapping the stock for an endcap and the tri-rail assembly for a classic MP5K vertical grip.

    The SOB-II comes with a bunch of unique aftermarket parts right out of the box:

    - Folding M4-style adjustable stock
    - Top rail that runs the entire length of the gun
    - Tri-rail assembly in place of the standard vertical grip
    - Custom charging handle
    - Straight MP5 magazines (x2)

    All these parts are high-quality, some of them like the tri-rail assembly and the M4 stock cannot be found anywhere else to my knowledge.

    The externals of this gun are excellent, there is no wobble anywhere, even on the folding stock (which is usually the weakest point on most guns with this feature). A minor downside to this gun is that it lacks sights of any kind, however this is not a major issue since the extreme length of the top rail will accept almost any sight the user desires.

    This gun is surprisingly heavy, which I think is pretty neat but it can take its toll on unprepared players, especially on all-day operations.

    Performance-wise, this gun has excellent accuracy coupled with a ferocious rate of fire. Mine chrono'd at 450 FPS, but after a spring swap to bring the FPS down to 350 this gun becomes the ultimate CQB machine. I don't even think it needs a Li-Po battery since it achieves this performance with a common 9.6V Ni-Cd battery.

    The Pros and Cons:


    - Good quality externals
    - Unique external mods
    - High rate of fire
    - Excellent accuracy
    - Heavy


    - No sights (just buy your favorite ones and slap them on)
    - FPS too high for CQB (change the spring)
    - Heavy

    The SOB-II is an excellent and versatile gun with no problems that cannot be easily fixed. If you're looking for a killer CQB gun then this is for you!
    by adam s. on 06/05/2015
    "alright, sportsfans, time for the Engineer Review.
    first of all, Echo1 installed the stock themselves. it was installed on a single point plate, and they just remounted the sling swivel, so you are technically getting a single point plate as well.

    second, the stock is reversable. pull off the stock...stock, unscrew the bolt holding the end cap on, unscrew the inner screw, and pull it off. reinstall upside down, and reassemble, and the stock folds to the left instead of the right. super cool.

    third, the mags (thats right, two of them) fit perfectly in double stack pistol mag carriers.

    the buffer tube is military spec, not civilian, so if you want to install another M4 stock, make sure you get the right diameter.

    fourth, there are downsides. the paint on the selector markings is easy to rub off, and the grip is about as slick as a gen one Glock pistol. get some grip tape.
    The weight. everyone else commented on this, too. its a cast metal frame, not weights, so you can't remove anything to fix it. who cares? it is great!
    The charging handle is locked into place when the battery is installed, and only used for ejecting said battery. No faux cycling for you!
    flash hider is painted orange aluminum, and locked into place with a setscrew, and glued. I had to dremel it off.
    selector is spongy, but improves when you tighten up the setscrews on it. I filed a notch into the pin, so the setscrew locked in better, and now the selector is so positive, it does PT every morning.
    by Elizabeth U. on 12/26/2014
    "First off let me say this thing is absolutely ridiculous in CQB! I went to a lot of CQB
    Places and this gun performed amazingly and surprisingly accurate to such a short barrel. It's a great gun, but be warned, you'll be ripped after playing a few games.

    High rps
    Good fps for CQB
    Very accurate for short barrel
    Pretty much full metal.

    Magazines are a little wobbly in maxwell but doesn't change performance

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    This item is Discontinued.