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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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JG Works M4A1 Full Metal Gearbox Airsoft AEG Rifle w/ LE Stock

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$125.95Guaranteed Lowest
  • Model: M4
  • Muzzle Velocity: 390 FPS
  • Build Material: Polymer Receiver, Metal Barrel
  • Weight: 5.5 lbs
  • Overall Length: 30" in. / 33" in.
  • Inner Barrel: 363 mm
  • Battery Type: 8.4V Mini
  • Gearbox: Version 2 (Metal)
  • Magazine Capacity: 300 rounds
  • Color: Black
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3 Ways to get Free Shipping

  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
Free ShippingThis item qualifies for Free Shipping

Must Haves

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

Tactical Gear

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Upgrades and Add-Ons

Other AccessoriesScopes and Optics
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Our take:  The NEW Full Metal Gearbox JG M4A1 Rifle hits harder and performs better than most other AEGs in its price range, and features JG's NEW Version 2 gearbox.  This polymer rifle, which comes with a full metal outer barrel and buffer tube, as well as a retractable stock, making it a perfect primary weapon for CQB and medium-range engagements!  This M4 AEG performs at the same level as full metal M4s for nearly half the price, and is perfect for players looking to step up their airsoft game!

Equipped with everything you need to field the rifle right out of the box, the JG M4A1 Rifle is the perfect AEG for CQB and medium-range engagements.  The integrated front and rear iron sights are adjustable for windage and elevation, and features both CQB and long range apertures.  Additionally, the full metal carrying handle can be easily removed to expose the top optics rail that can be used to mount aftermarket red/green dot scopes and sights.  This M4 comes fully equipped with a functional charging handle and bolt release, adding to its overall realism.  Racking back the charging handle kicks open up the dust cover and locks the mock bolt to the rear, allowing you to easily adjust the hop-up chamber.  Pressing the side bolt release send the mock bolt and expose the polymer hop up adjustment, with the bolt release button bringing the mock bolt back home.  The M4 rifle is also equipped with metal sling mounts and a retractable LE stock, improving the overall ergonomics of this AEG rifle (don’t forget to pick up a tactical 1-point rifle sling).  Ready to go right out of the box, this AEG includes everything you need to use the rifle on the field, including a battery, charger, magazine and a small bag of 0.20g BBs.  If you're looking for a hard-hitting M4 AEG that for less than $150, then the NEW JG M4A1 Carbine AEG is perfect for you!

- Polymer body (receiver, stock, grip) and full metal gearbox
- Shoots up to 390 FPS
- Full metal outer barrel, buffer tube
- Functional charging handle and bolt release
- Front and rear iron sights adjustable for windage and elevation
- Retractable LE stock
- Adjustable One-Piece Hop up
- Metal carrying handle
- Top rail for aftermarket optics
- Streamlined hand guard

Operation:  Electric Automatic
Build:  Polymer body, full metal gearbox (metal outer barrel and buffer tube)
Firing Modes:  Semi-automatic and Full-automatic, w/ functional safety
Muzzle Velocity:  370-390 FPS with 0.20g BBs
Magazine:  300rd high capacity magazine (gear wind-up)
Gearbox:  Full metal Version 2
Inner Barrel:  363mm
Outer Barrel Threading: 14mm Counterclockwise (CCW)
Battery Type:  9.6V and 8.4V NiMH small type
Hop-up: Adjustable
Weight:  5.5 pounds
Overall Length:  30” in. / 33” in. (Retracted / Extended)

Color:  BLACK

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 include:  Rifle, 300-round high capacity magazine, battery, charger, instruction manual

Battery Charger Recommendation:  Airsoft Megastore recommends the use of a smart charger to avoid overcharging the battery (overcharged batteries may cause decreased airsoft gun performance and may shorten battery life significantly). Smart chargers not only shorten charge time significantly (up to 800% faster charging), but more importantly, also automatically shut off once the battery is fully charged to avoid overcharged batteries.

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Product Reviews

5 JG Works M4A1 Full Metal Gearbox Airsoft AEG Rifle w/ LE Stock *****
Excellent Gun

"Right out of the box it shoots great. For the price, it is a great beginner m4. It is also quite cool that it has the working charging handle and bolt release as it adds to the realism when reloading. Have used it in a few skirmish's and it outperformed all of my friends weapons. Including the G&G Combat Machine and JG M4A1 S-System. Great weapon. 5/5"

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5 JG Works M4A1 Full Metal Gearbox Airsoft AEG Rifle w/ LE Stock *****


awasome guunnnn




We are happy to hear that you are enjoying the product! A gun bag is highly recommended if you are planning to take the transport this AEG frequently, the AMA 600D DualStor 38-Inch Deluxe Airsoft Gun Bag - BLACK is great for this purpose due to its overall space and many compartments for accessories.


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4 JG Works M4A1 Full Metal Gearbox Airsoft AEG Rifle w/ LE Stock *****
Pretty good gun

"This gun is built well it feel great and I slightly heavy great gun I do recommend getting a smart charger and better battery cause you will get locked out of the gearbox like me I fixed the problem but now I must wait to get the charger and battery. All in all great gun you should get it."

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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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