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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
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AMS Standard 45

  • Industry Leading 45 Day parts and defects warranty
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  • 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 M4 Carbine Full Metal Airsoft AEG Rifle w/ Metal Gearbox

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$234.22Guaranteed Lowest
  • Model: M4
  • Muzzle Velocity: 440 FPS
  • Build Material: Metal Receiver, Outer Barrel
  • Weight: 6.2 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. 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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Other AccessoriesScopes and Optics
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Our take:  The NEW Full Metal JG M4 Carbine AEG Rifle is a high performing M4A1 style rifle crafted from high grade full metal and shoots up to a whopping 440 feet per second (w/ 0.20g BBs)!  This AEG is perfect for shooting at both medium and long range distances, and can be easily fitted with aftermarket scopes and sights by removing the metal carrying handle.   This high performance AEG, based on the standard U.S. Army service carbine, is extremely durable and will withstand the stresses of long airsoft games.  This AEG’s performance is unparalleled to most other M4 AEGs on the market, and features a wide range of realistic features not found on other airsoft carbines in its price range!

Constructed out of full metal, the JG M4 Carbine weighs nearly the same as the actual M4A1 Carbine at 6 pounds.  This gives airsoft players an authentic feel that polymer body M4s don’t provide, and improves the AEG's overall durability.  This M4 comes fully equipped with a functional charging handle and bolt release.  Racking back the charging handle kicks open the dust cover, and locks the mock bolt to the rear providing easy access to the hop-up chamber.  Pressing the bolt release sends the mock bolt home with a loud "Snap", replicating the function of a real M4 carbine!  This NEW JG M4 AEG is also equipped with metal sling mounts and a retractable LE stock, improving the overall ergonomics of this AEG rifle.  Small type batteries can be easily installed in the rugged polymer hand guard, with enough space to house 9.6V and 8.4V NiMH batteries.  As a nice finishing touch, JG’s M4 includes a mock metal gas tube that adds a truly realistic look to the rifle.  This M4 includes everything you need to field the rifle right out of the box, including a battery, charger, magazine and a small bag of 0.20g BBs.  JG's NEW Full Metal M4A1 Carbine AEG is one of the most affordable and hardest-hitting full metal M4 AEGs on the market, and is sure to sell out quickly! Get yours before they're gone!

- Full metal body and Version 2 gearbox
- Shoots up to 440 FPS (w/ 0.20g BBs)
- 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
- Metal sling mounts
- Streamlined hand guard

Operation:  Electric Automatic
Build:  Full metal body and metal gearbox
Firing Modes:  Semi-automatic and Full-automatic, w/ functional safety
Muzzle Velocity:  420-440 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:  6.2 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 M4 Carbine Full Metal Airsoft AEG Rifle w/ Metal Gearbox *****
great gun

"Full metal construction except for grip stock and hand grip. Great accuracy and fps. Love the realistic feel and great attention to detail was made in this gun."

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4 JG Works M4 Carbine Full Metal Airsoft AEG Rifle w/ Metal Gearbox *****
Good over all

"This gun is great!! Its got great ROF, and is very accurate. I shot right threw card board at about 40 feet. Everything is well built and sturdy except the foregrip. It is a bit flimsy. I plan on replacing it with a full metal RIS one but its not terrible as is. Over all great gun"

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4 JG Works M4 Carbine Full Metal Airsoft AEG Rifle w/ Metal Gearbox *****
Stock - shipping

"Stock is loose and shipping took 2 more days then expected other than that this is a very nice gun! The only thing I don't like is the mag, if there is less then 25 BBs in it it will not feed but no big deal seeing that it's a 300rd mag, fix the stock and get an after market sight is my suggestion for anyone other then that it is definitely worth the money the accuracy is very good "

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2 JG Works M4 Carbine Full Metal Airsoft AEG Rifle w/ Metal Gearbox *****
great for a week

"when i got the gun it was great.Extremely accurate and high powered.but one week later it got many problems gearbox was busted and the motor broke. i sent it back.Would not recommend"

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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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