Specna Arms
Product code:
  • Fully Licensed
  • 4th Gen MOSFET
  • Quick Change Spring

A robust Airsoft Electric Gun from Specna's EDGE series of internally up-rated replicas that offers a GATE X-ASR MOSFET, quick change spring system, fully licensed and engraved trademarks as well as a combination of Zinc Aluminium and Steel externals.

Full description


This Airsoft Electric Gun from Specna Arms is another in the EDGE series and is where high quality external materials, top spec internal components and a reasonable price point all meet in the middle to create a sure-choice AEG. The external build quality is absolutely excellent on Specna models, and uses a combination of Zinc Aluminium, Alloys and Steel for a rock-solid feeling rifle in the shoulder, and a long lasting finish which is protected by a Nano Coating to reduce scratching. The replica is fully licensed and features markings from Rock River Arms, a firearms manufacturer from Illinois, USA. Furthermore, it is authenticated with a hologram seal so that you know you have the genuine article. The markings on the receiver are engraved and include a unique serial number.

Externally the replica features a 14mm CCW thread which comes with a stubby style suppressor already installed. With this unscrewed and removed, you have access to the thread to install whatever muzzle device you desire. The handguard is a four-point 20mm RIS and is ready for any RIS compatible accessories out of the box, but comes included with a Polymer short foregrip for better control over the replica. The receiver also has a 20mm rail on top which is ideal for scopes and sights, but has a flip-up rear ironsight installed out of the box. The pistol grip and stock are made from high density Polymers which makes them feel great, and the pistol grip is a quick access design which gives you easy access to the motor. The buffer tube has an ambidextrous sling plate installed which is ready for slings from either side of the replica, making this a great choice for left handed players who cannot adapt. The six position sliding Crane Stock at the rear is where the battery is housed and has sockets for a QD sling point if you wish to run this kind of setup. The battery connection is Deans out of the box, however there is an adapter included to convert the connection to a small Tamiya, to be compatible with most batteries.

Internally, the magic continues with the replica being built around the ORION gearbox with a reinforced frame. A 6.03mm precision inner barrel keeps your BB path true, and the Rotary HOP unit applies great amounts of backspin to your BBs, allowing you to use heavier weight rounds for steadier flight paths. A GATE X-ASR MOSFET protects your electrical components and ensures longer life, whilst improving response from the trigger. It can also diagnose basic faults thanks to the status LEDs on the board. A quick change spring system perfectly rounds off the package and makes it roughly 30 seconds to change the main spring once the gearbox is removed, giving the user much more flexibility with how they use the replica, and the power it can output. Other internal components include: a reinforced Piston, Aluminium sealed Nozzle, Aluminium double sealed Cylinder Head, Aluminium double sealed Piston Head, Steel Gears and 8mm Bearings.

If you're looking for a replica that has all the internal components of a top-tier Airsoft gun, the external build quality of a custom build, genuine licensed Trademarks and the price point of a standard AEG, you've come to the right place. The Specna Arms SA-E04 perfectly balances, fun, quality and price point.


  • Zinc Aluminium & Steel
  • Rock solid externals
  • Fully licensed
  • 2 x mid-cap magazines included
  • Rock River Arms trademarks
  • Nano coating finish
  • Unique serial number
  • Hologram authenticated
  • Quick access pistol grip
  • 14mm CCW thread
  • Ambidextrous sling plate
  • 20mm railed handguard
  • Flip-up ironsights
  • 20mm railed receiver
  • Precision 6.03mm inner barrel
  • Rotary HOP unit
  • ESA™ quick change spring
  • ORION gearbox
  • Reinforced gearbox frame
  • Reinforced Piston
  • Aluminium sealed Nozzle
  • Aluminium double sealed Cylinder Head
  • Aluminium double sealed Piston Head
  • Steel Gears
  • 8mm Bearings

Package Includes:

  • Rock River Arms SA-E05 Edge Carbine
  • Deans to Tamiya Converter
  • 2 x Mid Cap Magazines
  • 20mm RIS Foregrip
  • User Manual
  • ID Lanyard



Weapon Construction External
Weapon Type
Assault Rifle
Over 18 Only Icon
Over 18
Icon UKARA - United Kingdom Airsoft Retailer Association
Defence / UKARA Required
Yes, No,
FPS Icon
FPS (Feet Per Second), using 0.20g BB
Approx. 312fps ± 10%, using 0.20g BB
Site Legal Icon
Site Legal, using 0.20g BB
Included Items
  • Instruction Manual
  • Foregrip
  • Magazine x 2
  • ID Lanyard
  • Deans to Mini-Tamiya Connector
Skill Level Icon
User Skill Level
Regular Player

Weight and Dimension

Weight KG Icon
Weight (KG)
Approx. 2.4kg
Weapon Length Collapsed
Length (Collapsed)
Weapon Length Extended
Length (Extended)


Colour Wheel Greyscale
Primary Colour
Black, Tan ,
Colour Wheel Greyscale
Secondary Colour
Two Tone Icon
Pre Two-Toned
Construction Icon
Zinc Aluminium, Alloy, Steel & Polymer
Weapon Construction External
External Construction
Gearbox Icon
Internal Construction

Weapon Specific

Power Source Icon
Powered By
Blowback Icon
Weapon Platform
M4 / AR15 / M16
Magazine Style Icon
Magazine Style
Fire Select Icon
Fire Selector
PatrolBase | Fire Select Safe
Patrol Base | Fire Select - Semi Automatic
Semi Automatic
Patrol Base | Full Automatic
Full Automatic
Weapon Safety Features Icon
Safety Features
Trigger Lock
Shooter Configuration Icon
Shooter Configuration
Right Handed
Weapon Configuration Icon
Weapon Configuration
Weapon Scale Icon
Weapon Scale
Suggested BB Weight


Hop-Up Unit Icon
Hop-Up Unit
Hop-Up Unit Adjuster Icon
Hop-Up Adjuster
Hop-Up Unit Location Icon
Hop-Up Location
Behind mock bolt plate when charging handle to the rear


Weapon Furniture Icon
  • Railed Handguard
  • Suppressor
  • Flip-Up Ironsights
  • Railed Receiver
  • Sliding Stock
  • Foregrip
  • Ambidextrous Sling Plate
Rail System Icon
Rail System
20mm RIS / RAS
Icon Stock Positions
Stock Setting
Weapon Length Extended
Stock Positions
6 Position
Sight Type Icon
Sight Type
Iron Sights
Sling Plate Icon
Sling Options
Buffer Plate , Stock , Handguard ,


Icon Thread Type
Outer Barrel Thread Type
Icon Thread Direction
Outer Barrel Thread Direction
CCW (Counter Clockwise)
Outer Barrel Thread Size
Inner Barrel Diameter

Magazine Specific

Magazine Type
Medium Capacity , AEG,
Magazine BB Capacity
Approx. 125 Rounds
Magazine BB Fill Method
Speed Loader
Magazine BB Fill Location

Electric Gun Specific Information

Gearbox Icon
Gearbox Version
V2 Gearbox
Wiring Icon
Gearbox Wiring
Rear Wired
Spring Change Icon
Gearbox Quick Change Spring
Battery Specific
Battery Connector
Patrol Base | Icon | Mini Tamiya
Mini Tamiya
Patrol Base | Icon | Deans
Suggested Battery
Suggested Battery Type
Suggested Battery Configuration
Suggested Battery Voltage

Product Testing Data

Notepad Icon
Test Description
Notepad Icon
Tested Using
ASG Blaster 0.20g BBs
Notepad Icon
Test Date

Delivery & returns

Delivery & Postage

Here at Patrol Base we ship all around world, with delivery not only to the UK, but to most of the EU and select Worldwide locations as well. We provide a working day by road service via our handpicked courier services, simply buy your Airsoft guns with us and we'll have them delivered directly to your door.

For more information and to see the country we deliver please check out our Delivery Information Page.


Below are some rough postage prices for orders. Please note these are subject to change, and are only a rough guide. For more accurate postage estimate please use the Postage Calculator at the basket.

UK Standard



UK Next Day



Highlands / Islands






* Please note that Scottish Highlands, Islands and EU post prices can vary wildly. Prices range from £8.99, up to £29.99, so please ensure you refer to the Postage Calculator at the basket for the lowest possible price.


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.

Finance options

Looking to buy an Airsoft replica, but don't want to drop all your money at once? Perhaps you want to spread your payments over time to keep a backup of money, or perhaps you simply can't afford the hit right now and want to spread it over time? In any case you can spread your payments to take away the pain of the initial hit of the purchase of a replica, or give yourself the ability to spend that little bit more and get that rifle you've always wanted!

Want to know more about Airsoft Interest Free Finance?
You can check out our Airsoft Finance Info Page for more details >

Here at Patrol Base we have partnered with Omni Capital Retail Finance, allowing you to buy now pay later with ease.

You can select finance during the payment process which will take you to the Omnicapital portal and allow you to complete a credit check at your leisure. Once your finance is accepted you will be able to complete your order and wait for the goods to arrive!

Wondering how much it's going to cost?
Check out the examples below.

Looking to make the jump from BB guns to Airsoft, but don't want to save up to buy your entire loadout? Your time has come!

Airsoft replicas are leaps and bounds ahead of BB guns, but can sometimes carry a heavy price tag. You can spread the cost with us to save the strain on your wallet to allow you to buy your entire loadout at once, rather than piece by piece. Play now, pay later.

Want to know exactly why Airsoft Replica are so much better than BB Guns? Check out our BB Guns Page.

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