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Weapon Shield 90

  • EXTENDED Industry Leading 90 Day parts and defects warranty
  • Covers for all repair work
  • Comprehensive Tech Support
  • Priority processing time, Ships within 1 business days
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Weapon Shield Extended 135

  • TRIPLE EXTENDED Industry Leading 135 Day parts and defects warranty
  • Covers for all repair work
  • Comprehensive Tech Support
  • Priority processing time, Ships within 1 business days
  • Shipping Insurance

+ Tech Inspection

  • FPS Chronograph Certification
  • Gearbox Cleaning
  • Gearbox Lubrication
  • Fuse Replacement
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AMS Standard 45

  • Industry Leading 45 Day parts and defects warranty
  • Covers for all repair work
  • Comprehensive Tech Support
  • Standard processing time, 1-2 business days

AMS Proshop Warranty Options

Airsoft Megastore is proud offer our customers the most comprehensive warranty options in the industry. Orders are processed within our standard 1-2 business days from the date of purchase and shipped out with your selected shipping method (chosen at checkout). All accessories and upgrade parts are shipped within their manufacturer's packaging, to best protect each part during shipping. Upon arrival, the player will need to easily attach their own parts. Please be careful not to void your warranty by opening your gearbox, or damaging any of the accessories, as they are not covered under any warranty.

We suggest that anyone investing in a gun from our custom proshop purchase a weapon shield protection plan. There's no sense in spending your hard earned cash on something this awesome and then be at the mercy of the manufacturer's limited parts warranty. Purchase a weapon shield plan, 90 or 135 day plans to protect your airsoft investment. Our 135 day plan includes an inhouse tech service that you have 135 days to use. Our techs will do a clean up that should keep your airsoft investment running like the day you got it. All Weapon shield customers are prioritized for order processing as well as other services. Join the our satisfied Weapon Shield customers today!

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King Arms Airsoft COLT Licensed M4A1 Carbine Gas Blowback Rifle

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$351.95Guaranteed Lowest
  • Model: M4
  • Muzzle Velocity: 450 FPS
  • Build Material: Metal Receiver, Outer Barrel
  • Weight: 7 lbs
  • Overall Length: 33" in.
  • Inner Barrel: 363 mm
  • Propellant: Green Gas
  • Magazine Capacity: 50 rounds
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  1. 1. Buy Any Regular Priced Item
  2. 2. or, Buy Any Sale Item + Any Non-Sale Item
  3. 3. or, Any Order Over $150
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Our take: We are completely blown away by King Arms NEW Gas Blowback Colt M4A1 Carbine! The King Arms Colt M4A1 gas blowback rifle is amazingly realistic, with an open bolt gas blowback system and intensely realistic recoil, along with fully licensed Colt trademarks found throughout the rifle. This gun feels, looks and operates exactly like the real Colt M4A1 Carbine!

Some of the amazing features that this gas blowback M4A1 shares with the real steel version is the locking bolt which locks to the rear when all rounds are spent from the magazine, a functional charging handle, a fully functional bolt release, and a realistic buffer tube. The King Arms Colt M4A1 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 M4A1 Carbine gas blowback airsoft rifle is constructed entirely out of high grade metal alloy, except for the parts which are normally polymer on the real M4 including the hand guard, rifle grip, and retractable stock.  The build quality of this gas blowback rifle is unrivaled, and gives the rifle a truly authentic feel and hyper realistic look.  The field stripping of the King Arms M4A1 is almost exactly like the real M4, and can be done quickly and easily.  This gas blowback rifle features full Colt Trademarks, laser engraved into the lower receiver. Another great feature of this gas blowback M4A1 Carbine is the adjustable rate of fire and adjustable FPS.

King Arms has included a low velocity valve blocker, allowing the gas blowback M4A1 to be CQB legal (under 350 FPS). This King Arms Colt M4A1 gas blowback rifle's bolt is extremely smooth providing crisp, fast shots and very realistic recoil. This M4A1 Carbine comes with traditional M4 iron sight, adjustable for windage and elevation, allowing you to accurately aim at your targets. The King Arms Colt M4A1 gas blowback rifle is a terrific gas blowback rifle platform to build on, with a variety of compatible aftermarket parts and upgrades for personal customization.

Overall, the King Arms Colt M4A1 Carbine is THE best deal on the market for a full metal gas blowback rifle. The realism of this rifle is amazing! With a fully functional open bolt system, charging handle, and bolt locking feature, this gas blowback M4A1 will completely change your airsoft experience! The King Arms Colt M4A1 gas blowback rifle'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 M4A1 Carbine gas blowback airsoft rifle is 100% ATF approved, and cannot be modified to fire real ammunition.

-Fully Licensed Colt Trademarks
-Full Metal Construction
-Realistic Recoil
-Adjustable Rate of Fire & FPS
-Realistic Field Stripping
-50 round gas magazine included

Operation:  Gas Blowback
Body:  Fully Licensed Colt Metal Upper & Lower Receiver
Firing Modes:  Semi-automatic and Full-automatic
Muzzle Velocity: Low Power Valve Blocker (280-360) High Power Valve Blocker (350-450 ) FPS w/ 0.20g BBs
Magazine: 50-round low capacity (green gas/ propane magazine)
*Do NOT fill magazine with more than 50rds, as the loading nozzle may break
Gas Bolt System:  Open Bolt
Hop-up:  Adjustable (underneath outer barrel)
Weight:  6.5 pounds

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Product Reviews

5 King Arms Airsoft COLT Licensed M4A1 Carbine Gas Blowback Rifle *****
Got to have it!

"This is a great gun. I have been using the MP40 and it isn't nearly as good as this gun. I play and South Carolina and everybody is scared of the gun. It is so intimidating. I recommend this gun to pros and experienced players. "

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The store is amazing. I have found there items that I could not find in other stores which makes it the best. I have made questions and inquires about products and the customer service has responded super fast with accurate answers. All my products have arrived in excellent conditions in spite of other stores. My last product came late because it was rescheduled but that was UPS fault I think. I would like to thank Matthew for his exceptional customer service. Whenever you need help, please try to contact him. My advice, buy in Airsoft Megastore, they have coupons and the widest variety of airsoft products. RandyLoy, USA
I ordered a gun sling a couple weeks ago. Unfortunately, one of the clips broke. After a few email correspondings with a customer service representative named Jun (my emails did not show a last name), AMS sent me a replacement sling for free. I did not even have to send my clip back. AMS is a terrific store and I plan on doing more business with them. They were polite, efficient, and just a pleasure to work with. I would recommend Airsoft Megastore to anyone. mskanwischer, USA
Airsoft Megastore is The Best Airsoft Website Out There (I Think) and i Will Always Be Loyal to AMS and Order Almost All of my Gear From Them. The Customer Service is Also Amazing, Jun my Customer Service Representative Has Helped Me With Anything i Needed Help With, Especially My Order Problem (Had 2 Magazines Missing from Order) and Jun Helped Me With The Problem, and Now The Mags Have Been Shipped To Me. Thank You So Much AMS and Jun. Ethan1214, Saskatchewan, Canada
I love that Airsoft Megastore has videos of most any information you will need to learn and care for your products. I purchased an AEG for my son and in short order, unfortunately, it began grinding after brief use. I emailed for warranty repair with symptoms and with 24 hours (22 to be exact) I received an email explaining possible causes with a video like for tuning the gun. I had the gun working again within 15 minutes, avoiding returning the gun and the mess associated with returns\repairs. Excellence on Sean's part to help out a first time customer of theirs. Highly recommend. bucfanjeff, USA
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