King Arms M4 TWS M-LOK Rifle Ultra Grade II – Black


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King Arms M4 TWS M-LOK Rifle Ultra Grade II – Black

The King Arms M4 TWS M-LOK rifle is a good starter gun with a quick change spring, mosfet trigger system and M-LOK hand guard.

The rifle is built from polymer with a metal barrel. The stock has six adjustable positions for different size players and has two QD sling attachment points. The fire selector is located on the left side and has three modes, safe, semi and full auto. The magazine release is on the right side and the folding sights can be adjusted for windage. To access the hop unit you need to pull back the charging handle, which will cause the dust cover to flip open and reveal the hop unit.

There is rail all along the top of the rifle, which gives you a wide array of options for mounting optics and PEQ boxes to. The handguard uses M-LOK and so, is compatible with all M-LOK attachments. The rifle already comes with three pieces of rail so you can attach a foregrip, torch or laser to the rifle. At the end of the barrel is the flash hider, which can be removed to reveal the 14mm CCW thread that can be used to attach a suppressor or tracer unit to.

The rifle’s barrel length means it has good accuracy and will happily cope with ranged firefights. The rifle has a quick change spring system to help for when you need to change the fps easily. It also has a mosfet trigger system, which helps with trigger response.


  • Polymer body
  • M-LOK rail system with three pieces of rail
  • Folding adjustable sights
  • Adjustable hop unit
  • Mosfet trigger system
  • 14mm CCW thread
  • 2x QD sling attachment points
  • Adjustable 6 position stock
  • 140 round magazine
  • FPS: 325
  • Firing modes: safe/semi/full auto
  • Powered by 9.6v nimh or 7.4v lipo
  • Length: 900mm (stock extended) / 820mm (stock collapsed)
  • Inner barrel length: 375mm
  • Weight: 2410g


Oper8 7.4v 1300 mah stick lipo

CYMA 190 round mid cap magazine

Proball 0.20 BBs

icon Brand

King Arms Airsoft

King Arms Airsoft Gear Kings Arms produce a range of airsoft gear that is perfect for those looking to get into the sport or for those who are looking for an upgrade from their current equipment. Their products are made to a high standard and are designed to withstand the rigours of airsoft combat.  They have over 15 years of experience in manufacturing airsoft guns & accessories and have a large catalogue of various replicas of firearms from around the world. Read more >>
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Socom Tactical are pleased to announce we are able to offer 0% interest-free finance on all orders to Paypal customers

For full information please check out our finance page

Choose Pay in 3 at checkout where PayPal is available, and enjoy the power to split your purchase into three interest-free payments, with no set up fees or charges.* It’s a great way to help you stay in control of your budget.
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icon    Delivery Times and Costs View our Delivery Times and Costs

At Socom Tactical we aim to ship all orders same working Day During our working hours. All orders before 14:00 we aim to ship the same day. Shipments are shipped Monday, Wednesday, Thursday, Friday sadly due to no collections we are unable to ship Saturdays.

Pricing and Times

UK Mainland   £6 or Free on orders over £100

Europe   £10 - Delivery 3-7 working days (Excluding any customs delays)

Rest of the World   4- 14 Working Days (Excluding any customs delays)

Additional Time There May / Will be additional delays for Remote UK, Highlands and Islands, as well as Northern Ireland typically this, adds an additional 1-2 working day

UK Shipping Methods -   Typically most orders over £30 or 1kg are sent via DPD local Next Working Day delivery. You will receive an email and/or Text message from DPD with a 2-hour delivery window. Packages under 1kg or £30 will be shipped by Royal Mail First Class Tracking number can be viewed on your account

EAN: KA-AG-210-BK Category:

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