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King Arms Licensed COLT M4 RIS Carbine Airsoft Gas Blowback Rifle

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  • Model: M4
  • Muzzle Velocity: 400 FPS
  • Build Material: Metal Upper Receiver
  • Weight: 8.6 lbs
  • Overall Length: 30" in. / 33.5" in.
  • Inner Barrel: 363 mm
  • Propellant: Green Gas
  • Magazine Capacity: 40 rounds
  • Color: Black

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  3. 3. or, Any Order Over $150
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Our take:  King Arms has completely changed the way airsoft is played by introducing a premium performance and fully licensed Gas Blowback M4 Carbine for a fraction of the price of other gas blowback rifles on the market!  Finally, airsoft players can now afford a high quality gas blowback M4 for nearly the same price as an AEG.  The NEW King Arms Colt M4 RIS Carbine Airsoft GBBR is intensely realistic, with fully licensed Colt trademarks, hard kicking recoil, and an authentic weight and feel.  Featuring the revolutionary GHK M4 GBBR Kit, this gas blowback is incredibly reliable and consistent, unlike some other gas blowback rifles on the market.  What truly sets this rifle apart from other gas blowbacks on the market is its ability to use the included GHK GBBR Kit, as well as a standard Version 2 Gearbox.  We are completely blown away by the performance of the NEW King Arms Colt M4 RIS gas blowback carbine, kicking harder, and shooting farther than most gas blowback rifles on the market!  At nearly the same price as an M4 AEG, this King Arms Colt M4 RIS GBBR is an incredible deal and is sure to sell out quickly!  Get yours before it’s too late!

Some of the amazing features that this gas blowback M4 RIS shares with the real steel version is the bolt stop feature which stops the rifle from dry firing when all rounds are spent from the magazine, a functional charging handle, and a realistic trigger and safety mechanism. The King Arms Colt M4 RIS Gas Blowback rifle is by far one of the best performing and quality constructed gas blowback rifles on the market.  Best of all, unlike most gas blowback rifles, the magazines for the King Arms Colt M4A1 Carbine won't break the bank.

The King Arms Colt M4 RIS Carbine gas blowback airsoft rifle features an incredibly rugged nylon fiber upper and lower receiver which reduces the overall weight of the rifle, as well as the price!  The outer barrel, railed hand guard, carry handle, and buffer tube are constructed entirely out of high grade aluminum alloy, maintaining this rifle’s authentic aesthetics.  Similar to a real steel M4 Carbine, the tactical LE stock and grip are made from a high density polymer.  Field stripping the King Arms M4 is very easy, as the upper and lower portions of the drop-in GHK GBB Kit separate easily for cleaning and maintenance.  This gas blowback rifle features full Colt Trademarks engraved into the lower receiver, as well as a unique serial number adding to the rifle’s realism.

This King Arms Colt M4 gas blowback rifle's bolt is extremely smooth, providing crisp, fast shots and very hard kicking recoil. This M4 comes with a removable carry handle iron sight, adjustable for windage and elevation, allowing you to accurately aim at your targets. The King Arms M4 is a terrific gas blowback rifle platform to build on, with a variety of compatible aftermarket parts and upgrades for personal customization. The included rail system allows you to customize your M4 with a variety of tactical accessories such as fore grips, flashlights, lasers, sights, and even grenade launchers!

Overall, the King Arms Colt M4 RIS Carbine is THE best deal on the market for a gas blowback rifle. The realism of this rifle is amazing! With a fully functional closed bolt system, charging handle, and bolt stop feature, this gas blowback M4 will completely change your airsoft experience! The King Arms M4’s realistic function, recoil, and fully licensed Colt trademarks truly make this one of the most realistic airsoft rifles on the market! Don't miss out on this game changing gas blowback rifle!

* This King Arms Colt M4 Carbine gas blowback airsoft rifle is 100% ATF approved, and cannot be modified to fire real ammunition.



- Revolutionary GHK GBB Kit
- Fully licensed Colt trademarks
- Nylon fiber upper & lower receivers
- Full metal inner & outer barrel
- CNC aluminum rail system
- Hard kicking recoil
- Adjustable hop up chamber
- Easy disassembly
- 40 round gas magazine included
- 60 Day Manufacturer's Limited Warranty

Operation:  Gas Blowback
Body:  Fully Licensed Colt Metal Upper & Lower Receiver
Firing Modes:  Semi-automatic and Full-automatic
Muzzle Velocity: 350-400 FPS (w/ 0.20g BBs)
Magazine: 40-round low capacity (green gas/ propane magazine)
*Do NOT fill magazine with more than 40rds, as the loading nozzle may break
Gas Bolt System:  Closed Bolt
Hop-up:  Adjustable (located behind dust cover)
Weight:  8.6 pounds
Length:  30" in. (retracted); 33.5" in. (extended)
Inner Barrel Length:  363mm
Ammo type: Seamless 0.20g or heavier (0.23g, 0.25g, 0.26g, 0.28g, etc) BBs.  For maximum performance and accuracy, Airsoft Megastore recommends GoldenBall ProSlick BBs which carry perfect spherical consistency and density, available at Airsoft Megastore for the lowest price on the market, guaranteed.

Package Includes:  Rifle, 40rd gas blowback magazine, manual

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Product Reviews

4 King Arms Licensed COLT M4 RIS Carbine Airsoft Gas Blowback Rifle *****

"Just got this gun today and right out the box I was really impressed with this M4. It feels really good in your hands and has a bit of weight to it. When I took it outside to shoot it, it preformed very well. It has a nice kick to it and its pretty accurate with an acog on it. The only cons I have for this gun is that the stock was sort of lose and the mag for this gun is crap. Other then that the King Arms M4 is not a bad first gas rife. If your where thinking about buying it, get it! Its a lot of fun too shoot and cant wait to get it on the field!"

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