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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
  • Shipping Insurance
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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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370 FPS CYMA M4A1 Full Metal Gearbox Automatic AEG Airsoft Carbine

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  • Model: M4
  • Muzzle Velocity: 370 FPS
  • Build Material: Polymer
  • Weight: 6 lbs
  • Overall Length: 30.5" in. / 33.5" in.
  • Battery Type: 8.4V Mini
  • Gearbox: Version 2 (Metal)
  • Magazine Capacity: 300 rounds
  • Color: Black
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  3. 3. or, Any Order Over $150
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Must Haves

BB CombosBBsExtra MagazinesFace & Eye ProtectionGun BagPremium BatteriesSmart Charger for AEGsUniversal Tactical Sling

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Our take:  The NEW M4A1 AEG Carbine by CYMA rocks solid internal parts and offers players with a versatile rifle that will fare well in both CQB and outdoor scenarios.  Powered by a hard-hitting Version 2 gearbox, this M4A1 AEG shoots between 350-370 FPS (w/ 0.20g BBs) and yields incredibly tight groupings.  Combined with its high quality internals and durable build, CYMA’s M4A1 AEG Carbine is a force to be reckoned with in any airsoft game!

CYMA, which is known for their wide variety of AK47 style AEGs, designed this M4 for both indoor and outdoor fields.  This AEG is fitted with a fully adjustable hop-up unit to ensure each round hits its target.  The front and rear iron sights are adjustable for windage and elevation, with the option to easily remove the carry handle to make space for aftermarket optics and improve accuracy.  Although this AEG comes with a standard M4 style handguard, players can easily install an M4 style drop-in RIS/RAS handguard to attach mounted accessories, including flashlights, mock PEQ boxes, and a CYMA Ergonomic RIS Vertical Foregrip.

The X-Tac Polymer Difference
This new CYMA Gen-4 M4 is equipped with an advanced X-Tac Polymer body, built to deliver ultra-maneuverability with its lightweight formation, while being able to with extreme wear and tear in the playing field.  Formulated with an advanced polymer composite, CYMA's new X-Tac Polymer bodies deliver never-before-seen reliability and performance for an airsoft rifle under $150, turning the airsoft market on its head.  Available exclusively at Airsoft Megastore, buy your new CYMA M4 today and experience the X-Tac Difference!

Maneuverability comes easy for CYMA’s M4A1 as it is equipped a polymer LE stock that can be adjusted in six positions, improving the overall ergonomics of this rifle.  The retractable stock also makes it easy for operators to turn tight corners and clear buildings.  This M4 AEG also features a full metal outer barrel, buffer tube and charging handle to improve the overall reliability and durability of this rifle.  Additionally this AEG is built with a highly durable polymer upper and lower receiver, making it lightweight and thus reducing operator fatigue in longer games.

The NEW CYMA M4 RIS is a top-of-the-line AEG for its price and is compatible with Version 2 internal parts, giving you the option for upgrades and modifications in the future.  This rifle is perfect for all airsoft players and comes with everything you need in the box, including a high capacity magazine, bag of BBs, battery and charger!

- Full Metal Version 2 gearbox
- Full metal outer barrel, buffer tube, charging handle
- Impact resistant polymer upper and lower receiver
- Shoots between 350-370 FPS
- 6-position polymer LE stock
- Removable carry handle
- Front and rear iron sights adjustable for windage and elevation
- Universal sling mounts for 2- and 3- point rifle slings
- Mock gas tube
- 300rd high capacity magazine included

Operation:  Electric Automatic
Build:  Polymer receiver, stock, rails / Metal gearbox, outer barrel
Firing Modes:  Semi-automatic and Full-automatic w/ functional safety
Muzzle Velocity:  350-370 FPS (w/ 0.20g BBs)
Magazine:  300rd high capacity magazine (gear wind-up)
Gearbox:  Full Metal Version 2
Battery Type:  8.4V Mini
Hop-Up:  Adjustable
Weight:  6lbs
Overall Length:  30.5” in. / 33.5” in. (Retracted / Extended)

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, high capacity magazine, battery, charger,

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Product Reviews

5 370 FPS CYMA M4A1 Full Metal Gearbox Automatic AEG Airsoft Carbine *****

"This is my first AEG Rifle and i have to say that i am blown away. It feels like its a sturdy gun, The stock is made of polymer plastic which is still very strong. Just don't go playing catch with it =p. It has a small made in china sticker on it that is a pain to get off. It doesn't need any adjustments right out of the box, just charge throw in some BB's and your good to go. Its extremely accurate (idk how because i didn't measure but there's videos on youtube.) The carry handle is made of the same polymer plastic as the stock. The iron sight is fantastic, its fully adjustable and I'm happy with it so i don't think ill get a sight. I didnt get the smart charger because i dont have to budget for it yet, so i couldn't tell you how the battery is. The fps is perfect for cqb. And it feels natural when you hold it."

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5 370 FPS CYMA M4A1 Full Metal Gearbox Automatic AEG Airsoft Carbine *****
First AEG

"I was looking for a good, cheap AEG to get me into the electrics. When I bought this the spring on my charging handle was stretched out. Because of that, the little thing that holds the dust cover shut broke off. Then gun even fell off of my sling backwards, opened up, and NOTHING broke!! It has a bit of wobble with it. The magazine (with the stock magazine) wobbles quite a bit. The stock also likes to wobble. I ended up accidentally overcharging my battery, so I bought a new one from AMS and I got a Smart Charger and a nunchuck/butterfly type battery. Yes, those fit. SO... On to the pros and cons. PROS: Accurate, 13 rps, mostly sturdy, durable, ~350 FPS, and just overall FUN. CONS: magazine and stock wobble, Stretched out spring, and because of the spring, broken dust cover. overall, a great gun. I WILL be ordering from AMS more, and I HIGHLY RECOMMEND THEM!!!"

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1 370 FPS CYMA M4A1 Full Metal Gearbox Automatic AEG Airsoft Carbine *****

"When I first got it, it worked great. But after a week or two it stopped feeding. Would not recomend"

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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
Everything worked great, shipping was super fast. I am very pleased and won't hesitate to order through airsoft megastore again. rob_riley, USA
I loved buying from airsoft megastore because the employees helped me recover my tracking number and told me where the package was at, I would love to buy from airsoft megastore again! Battlefield4Rule, USA
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