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Weapon Shield 90

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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 Airsoft Full Metal Gearbox M16A1 Carbine AEG w/ Fixed Full Stock

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  • Model: M16
  • Muzzle Velocity: 410 FPS
  • Build Material: Polymer Body, Metal Outer Barrel
  • Weight: 6 lbs
  • Overall Length: 34" in.
  • Inner Barrel: 363 mm
  • Battery Type: 8.4V Mini
  • Gearbox: Version 2 (Metal)
  • Magazine Capacity: 190 rounds
  • Color: Black
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Our take:  The NEW JG Works Model 651 M16A1 Carbine AEG perfectly replicates the design and features of the rare Model 651 M16A1 Carbine, used by U.S. Forces during the Vietnam War.  This unique Vietnam War Era carbine is highly sought after by both airsoft collectors and airsoft players alike, due to its high degree of realism, its authentic features, and its hard hitting performance.  This carbine isn’t just a good show piece, its full metal Version 2 gearbox puts out a whopping 400 feet per second (with 0.20g BBs), and it has a menacing rate of fire!  Whether you are looking for a versatile field ready AEG, or a rare authentic Vietnam War Era airsoft carbine, the NEW JG Model 651 M16A1 Carbine is perfect for you!

What sets the Model 651 AEG apart from standard M16A1 airsoft rifles is its compact 14.5” inch barrel and M4 style hand guard, which makes it much easier to wield in urban environments.  In many ways the Model 651 was the precursor to the standard M4A1 carbine, featuring a mid-length barrel, wide tubular hand guards, and a birdcage flash hider.  The polymer upper and lower receiver of the JG Model 651 Carbine AEG are nearly identical in design to the M16A1 rifle, featuring an integrated carry handle, a tear drop forward assist, as well as an M16A1 style rear iron sight.  The full stock of this carbine makes it comfortable to shoulder and aim, and also makes battery installation much easier than a typical M4 carbine.  Unlike most polymer body AEGs, racking the charging handle of the JG Model 651 Carbine kicks open the dust cover and locks the mock bolt to the rear, providing quick and easy access to the hop-up chamber.  Pressing the functional bolt release shoots the mock bolt forward with a crisp “Snap”!  All of these features combined make the JG Model 651 M16A1 Carbine one of the most authentic looking Vietnam Era carbines on the market!

This authentic Model 651 style rifle also comes with front and rear metal sling mounts, allowing you to attach an authentic Vietnam Era two point sling.  A metal mock gas tube serves as a nice finishing touch and can be clearly seen through the hand guard, adding to the overall realism of the rifle.  With a huge assortment of M4 and M16 AEGs on the market, the unique looking JG Model 651 M16A1 Vietnam Era AEG stays true to the rifle’s origins and is incredibly affordable for an authentic polymer M16A1 Carbine airsoft replica with a hard hitting full metal gearbox!

- Authentic Polymer M16A1 style upper and lower receiver
- Full Metal Version 2 Gearbox
- Full metal outer barrel
- Precision inner barrel
- Shoots up to 400 feet per second (w/ 0.20g BBs)
- M16A1 style 190rd hi-cap magazine
- Teardrop forward assist (as found on the real Model 651 Carbine)
- Fully functional charging handle and bolt release button
- Front and rear iron sights, w/ long and short range apertures
- Adjustable one piece hop-up
- Metal sling mounts
- Battery, charger, bag of 0.20g BBs
- M16A1 style pistol grip
- Mock metal gas tube

Operation:  Electric Automatic
Build: Polymer body (metal outer barrel) w/ full metal gearbox
Firing Modes:  Semi-automatic, Full-automatic, w/ functional safety
Muzzle Velocity:  400-409 FPS (w/ 0.20g BBs)
Magazine:  190rd high capacity magazine (gear wind-up)
Gearbox:  Full metal Version 2
Inner Barrel Length:  363mm
Outer Barrel Threading:  14mm Counterclockwise (CCW)
Battery Type:  9.6V and 8.4V NiMH Small Type
Hop-Up:  Adjustable One-Piece
Weight:  6 pounds
Overall Length:  34” in.

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 includes:  Rifle, 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.

JG Airsoft Full Metal Gearbox M16A1 Carbine AEG w/ Fixed Full Stock Categories:

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Product Reviews

4 JG Airsoft Full Metal Gearbox M16A1 Carbine AEG w/ Fixed Full Stock *****
Overall Good Gun


Overall, as the title above states this is an overall good gun. Excellent rate of fire, good internals and not too heavy. It tends to burn the battery rather quickly, so perhaps one would do well to purchase an extra. I've dropped this gun several times on concrete, and it's still fine. No rails, kinda a bummer, but whatever. It makes a lot of noise when you fire, so if you want stealth... Get a DMR. Overall, this is an excellent beginner to intermediate gun. For this price, buy it now. You won't regret it.

I am glad to hear you are liking this rifle! Understandably, you may need another 8.4V NiMH MINI BATTERY, if yours is running out faster than you expected. If you are willing to do a bit of modification, to get a rail system, check out this FULL-LENGTH QUAD RAIL SYSTEM.



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3 JG Airsoft Full Metal Gearbox M16A1 Carbine AEG w/ Fixed Full Stock *****
Not very durable

"The problems I have been having is the extra mags that I bought would only feed if I move the mag around some to feed properly which has gotten me hit a few times. The other problem is that my rifle fell off my back and cracked open the case and broke the piston. Just be careful when using."

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1 JG Airsoft Full Metal Gearbox M16A1 Carbine AEG w/ Fixed Full Stock *****
it not the best gun to get

"when i got this and all it did is blow the fuse and i had to keep replace them. Then it just burnt out the motor so it will not work now. the stock is also a little over sized with the gun. The sites broke after the seconded time using them and the clip holding the hop up cover also broke right out of the box"

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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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