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King Arms M4 TWS KeyMod Carbine-Gun Metal Grey

$ 340.00 USD
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This full metal constructed AEG equipped with Training Weapon System (TWS) Keymod integrated receiver and rail platform.

 1.KeyMod tactical handguard:

- Light-weight aluminum full CNC machined handguard makes the rifle more sturdy and robust.

- Eight-sided mounting platform conveniences shooters to bolt-on vary accessories.

- Come with 3 pieces of picatinny rail sections.

 2.Ambidextrous magazine release and selector:

- Ease to reach ambidextrous magazine release and selector helps to speed up the on-field reaction. 

 3.Ergonomic grip:

- Designed to improve ergonomics with interchangeable front and rear inserts for personalized hand fit. 

- It offers the operator maximum comfort and control over the rifle.

- The ventilation motor end plate can lower the motor temperature while skirmishing.

 4.Tactical stock:

- With angled non-slip butt-pad allows faster presentation.

- Pivoting rear-accessed large storage compartment.

- Velcro on both side of the stock for sticking on your favorite patches.

- Quick detachable sling mounting points are positioned for optimum usage.

- It's featured with removable recoil pad and Dual-release unlocking lever.


- Round cylinder shape vibrates the sound of firing, makes the sound more solid.


- Full adjustable front and rear sights.


- TWS 370 Rounds high capacity TMAG.

- Non-slip texture polymer casing ensures the operator access the magazine confidently.

 8.Metal receiver:

- Cool muscular metal receiver design.

- Tight fit upper and lower frame.

- Functional both-lockable charging handle.

- Vary markings, such as KING ARMS logo and TWS logo, over both sides of the rifle body and the top rail.

- Each rifle come with unique serial number marked on the receiver.

 9.Sling mounting point:

- Up to 8 quick detachable sling swivel mount points provides superb convenience platform to suit shooter's rifle carrying habits.

 10.Outer & Inner Barrel:

- One piece CNC machined metal outer barrel avoid wobbling.

- Well-polished precise 6.02 brass inner barrel lets every shot more accurate.


- Highly calibrated 8mm bearing gearbox with metal spring guide.

- Quick change spring system can let operator alter the power spring easier.

- The power circle comes with a reliable MOSFET gives accuracy triggering.

- Adjustable metal hop-up unit.

Suggested Energy Source9.6V battery
Maximum Battery Storage11.1V
Max. Overall Length930mm
Min. Overall Length850mm
Inner Barrel Length410mm
Weight without Magazine3030g
Main MaterialAluminum
Major ColorGun Metal Grey
Capacity370 Rounds
Fire ModeSafe / Single / Full-Auto
MarkingKing Arms
King Arms Bolt Catch SystemKing Arms AEG Bolt Catch System
Loading ModeAutomatic
Blowback Action-NA-
Outer Barrel DesignCNC One Piece
Magazine Release Design
Hop-Up Bucking DesignAdjustable AEG Type
Gearbox DesignQuick spring change system Ver.2 gearbox with 8mm bearing/Mosfet
Motor DesignLong Axle Type
Accessories come with package370Rds Training Weapon System (TWS) Magazine (KA-MAG-72-BK)
Muzzle Velocity (Canada version)Over 366 FPS
Muzzle Velocity (Italy / Japan version)Lower than 0.98J
Muzzle Velocity (Standard version)380~420 FPS
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