Tokyo Marui No.04 Kel-Tec KSG Gas Shotgun

Tokyo Marui
Was £379.99
Save £45.00
  • Gas Non-Blowback
  • Pump Action Design
  • Removable Gas Tank

Featuring all of Tokyo Marui’s usual high-quality standards of construction and design, this is a gas powered non-blowback replica of Kel-Tec’s futuristic looking bullpup KSG shotgun, as seen in many videogames and movies.

Full description


Once again Tokyo Marui demonstrate to their Airsoft community their prowess in design, with this incredible replica of Kel-Tec’s KSG shotgun, accurately managing to recreate the look and feel of this unique bullpup shotgun.

By utilising similar materials to those used on the real KSG, Marui have managed to make their Airsoft gun appear and feel almost like the real thing. Externally the Marui KSG is almost indistinguishable from the real thing, having accurately recreate the bullpup’s unique aesthetics. The receiver and body are constructed from tough and lightweight polymers, whilst the barrels, rails and internals have been machined from alloy, resulting in a well balanced and easy to handle Airsoft replica.

To ensure that their Airsoft KSG shotgun performs well, Marui have utilised the gas tank system as used by their popular Breacher range of gas shotguns. This well designed gas system is highly efficient, and allows users to adjust the number of BBs fired by the weapon with its 3 and 6 round modes.

As you would expect of an Airsoft replica of a modern firearm, the Marui KSG features a 20mm RIS accessory rails. The upper 12” rail runs the full length of the KSG’s barrel, allowing users to mount any optics or scopes as required, such as compact red dot sights. The pump also as a 6” long rail, offering ample space for mounting forgrips for enhanced control over the Airsoft gun or flashlights.

Built in the bullpup configuration, the KSG is a short and compact weapon ideal for CQB, but manages to maintain a long length barrel. Just like the real KSG, Tokyo Marui’s replica possesses two magazine barrel tubes. The left tube is used to store up to two spare shells, whilst the right barrel is used for loading the shell to fire it.

Featuring all of the high-quality design and manufacturing we’ve come to expect of a Tokyo Marui product, this gas powered Airsoft replica KSG shotgun is perfect for Airsofters seeking a compact CQB friendly shotgun, or simply those of you wanting to add a unique and futuristic looking replica to your Airsoft collection.


  • High quality Tokyo Marui design and construction  
  • Gas powered non-blowback design
  • Extremely gas efficient system
  • Bullpup configuration style design
  • Ultra-modern external aesthetics 
  • Realistic racking sound
  • Three shot / Six shot adjustable system
  • Ambidextrous trigger lock safety
  • 12'' alloy upper 20mm rail for attaching sights and red dots
  • 6'' lower rail on the pump for attaching vertical grips
  • Ambidextrous front sling loop points
  • Mock non-functional back barrel selector
  • Rubberised textured butt plate
  • Rear loaded with Airsoft shotgun shells
  • Left barrel can be used to hold up to 2 spare shells
  • Removable gas tank
  • Gas tank is stored in the butt of the weapon, behind the rubber butt plate
  • Included flip up ironsights
  • Flip up ironsights adjustable for windage and elevation
  • Textured pump and grip for enhanced grip and control
  • Branded:
    • 'COCOA FL USA'
    • 'KSG'

Package Includes:

  • No.04 Kel-Tec KSG Gas Shotgun
  • Flip-Up Ironsights
  • Gas Tank
  • Shell
  • User Manual

Special Instructions:

Please note you cannot slam fire this weapon like you could with the TM Breacher, you must complete a full firing cycle before you can pump the weapon again.



Weapon Construction External
Weapon Type
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. 310fps ± 10%, using 0.20g BB
Site Legal Icon
Site Legal, using 0.20g BB
Screwdriver Icon
Included Items
  • Instruction Manual
  • Shell
  • Ironsight Set
  • Removable Gas Tank
Skill Level Icon
User Skill Level
Experienced Player
Patrol Base - Warning Icon
Do not Multi-Rack
Do not Slam Fire

Weight and Dimension

Weapon Length Collapsed
Length (Collapsed)


Colour Wheel Greyscale
Primary Colour
Two Tone Icon
Pre Two-Toned
Construction Icon
Alloy Barrels, Top Rail, Sling Mount and Internals, with Polymer Body, Flip-Up Ironsights and Pump
Weapon Construction External
External Construction
Gearbox Icon
Internal Construction

Weapon Specific

Power Source Icon
Powered By
Green Gas
Blowback Icon
Weapon Platform
Kel-Tec KSG
Magazine Style Icon
Magazine Style
Fire Select Icon
Fire Selector
Weapon Safety Features Icon
Safety Features
Trigger Lock
Shooter Configuration Icon
Shooter Configuration
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


Weapon Furniture Icon
  • Railed Handguard
  • Flip-Up Ironsights
  • Fixed Stock
  • Railed Receiver
  • Ambidextrous Safety
Rail System Icon
Rail System
20mm RIS / RAS
Icon Stock Positions
Stock Setting
Weapon Length Extended
Stock Positions
1 Position
Sight Type Icon
Sight Type
Aperture Iron Sight
Sling Plate Icon
Sling Options
Stock , Handguard , Loop ,

Magazine Specific

Magazine Type
Low Capacity , Shotgun Shell,
Magazine BB Capacity
Approx. 30 Rounds
Magazine BB Fill Method
Speed Loader
Magazine BB Fill Location

Shotgun Specific

Shotgun Load Style Icon
Shotgun Load Style
Shotgun Barrel Configuration Icon
Barrel Configuration

Product Testing Data

Notepad Icon
Test Description
Tested using 0.2g BBs and ULTAIR @ 9.1°c
Notepad Icon
Test Date

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