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A&K Airsoft Full Length M16A3 AEG Rifle - Full Metal Gearbox

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  • Model: M16
  • Muzzle Velocity: 330 FPS
  • Build Material: Polymer Receiver, Metal Barrel
  • Weight: 7.5 lbs
  • Inner Barrel: 509 mm
  • Battery Type: 8.4V Mini
  • Gearbox: Version 2 (Metal)
  • Magazine Capacity: 300 rounds
  • Color: Black


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  2. 2. or, Buy Any Sale Item + Any Non-Sale Item
  3. 3. or, Any Order Over $150
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Our take:  The A&K M16A3 AEG is part of A&K's line of performance oriented, durably built polymer body AEGs. These polymer-receiver A&K AEGs are built to be high speed, and perfect for any type of Airsoft combat. These A&K AEGs not only feature lightweight and durable polymer bodies, but also include everything you will need to start using the rifle! The A&K M16A3 includes a rechargeable battery, a standard wall charger, a 300rd high capacity metal magazine, and a metal replacement flash hider! The M16A3 AEG has incredible range due to its long inner barrel, shooting accurately over 150 feet! The M16A3 AEG is sure to pick off the opposition at extreme distances!

The M16A3 features a full stock with easy battery compartment access, providing plenty of room for any size battery. This M16A3 AEG easily holds its own in any outdoor airsoft environment. With a precision inner barrel and fully adjustable hop-up, it can easily hit targets beyond 150 feet! The M16A3 AEG features a high-quality impact-resistant polymer upper and lower receiver, a full metal outer barrel, metal front and rear iron sights, and metal top rail. The polymer components on the rifle are the retractable stock, textured hand guard, carrying handle, and the motor grip. Though the length of the M16A3 might not make it the best CQB AEG, it is still CQB field legal (shooting at 330 FPS). The A&K M16A3's construction is extremely durable, and has a very realistic feel.

The A&K  M16A3 has a redesigned and reinforced metal gearbox with a factory installed high speed motor, making it one of the best-performing polymer body M16 AEGs on the market for under $150! The full metal gearbox features metal bushings, a metal ball bearing spring guide, a full steel gear set, a high speed motor, and a perfectly sealed cylinder. The A&K M16A3 also features a two-piece hop-up unit as well as a 6.04mm precision inner barrel, providing excellent range and accuracy. The M16A3 is designed to perform at long ranges, and has much better accuracy than smaller barrel AEGs.

Overall, the A&K M16A3 AEG provides the best value for the lowest price on the market. With a solidly constructed full metal high performance gearbox this AEG is able to hold its own against some of its top tier AEG competitors. The A&K M16A3 provides great accuracy and hard hitting power in a full size M16A3 platform. If you are looking for a lightweight, long range AEG, but can't afford the top tier price tag this is definitely the AEG for you!

- Impact resistant polymer body for maximum durability
- High performance metal gearbox and high speed motor
- 300rd high capacity magazine included
- Top rail for optics and accessories
- High performance AEG rifle, shooting at 300-330 FPS!
- Extremely durable
- Ready to go out of the box!

Build:  Metal gearbox / Polymer receiver
Firing Modes:  Semi-automatic and Full-automatic w/ functional safety
Muzzle velocity:  300-330 FPS with 0.20g BBs
Magazine:  300rd High Capacity (gear wind-up)
Gearbox:  Full Metal Version 2
Rate of fire:  13 RPS (Rounds per Second) with an 8.4v battery
Weight:  7.5 lbs

Package includes:  A&K M16A3, 300rd hi-cap magazine, rechargeable mini-type battery, standard wall charger, and cleaning rod

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.

Battery Charger Recommendation:  Although this fully automatic airsoft rifle comes with a standard wall charger to charge the battery, 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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***** 4 / 5
Based on 11 Review(s)
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Product Reviews

5 A&K Airsoft Full Length M16A3 AEG Rifle - Full Metal Gearbox *****


Very impressive rifle for the money. For under 100 dollars this is the best AEG you can get on this website. Now, for you uneducated people and the people at Airsoft Megastore, this is actually a replica M16A2. NOT THE A3. Hop up unit is great, range and accuracy is amazing. Buy the mock suppressor barrel extension for 15 bucks as well. It looks awesome with it. I recommend this rifle to anyone that's on a budget.




We are very glad to hear that you are happy with the product! Any standard 14mm counter-clockwise threaded barrel extension/silencer will be compatible with this AEG. The AGM 110 mm aluminum barrel extension/silencer is one of our most popular, check it out! 


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5 A&K Airsoft Full Length M16A3 AEG Rifle - Full Metal Gearbox *****
Great first gun!

"pros: Very accurate, great range, fast rate of fire, comes with a 9.6v. Light weight yet very sturdy. BEST FUCKING PISTOL GRIP EVER, CQB legal (But kinda too long for CQB), comes with metal orange tip. Lots of room for batteries. LOOKS SOOO SEXY!!!!! Cons- Hard for CQB, Sight is hard to adjust, Some mag feeding problems but able to be fixed, Don't use anything heavier than .23 g BB's. Not good for CQB, but it does the job."

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5 A&K Airsoft Full Length M16A3 AEG Rifle - Full Metal Gearbox *****

"Took it out of the box, looked beautiful and real. Weight is realistic. Barrel was bent a bit to the left, but when I looked down the sights it fixed itself. Sturdy weapon and mag, flip sights, handgrip is plastic, though it holds up really well, grip tape could make it feel more sturdy. Shot .12 grams out of it with snow on the ground on a 15 degree day, and it worked flawlessly. Overall a great gun, can't wait to field test it."

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5 A&K Airsoft Full Length M16A3 AEG Rifle - Full Metal Gearbox *****

"Ordered this gun a week and four days ago... Took so long because of the holidays but lemme tell you, Terrific, Beautiful, And perfect gun.... Weights amazing on it, Iron sights real accurate, but the gun only goes at least 100 Feet without unaccuracy, Though it just may be my gun... But really good and dependable gun. Only down side I found on this gun is the battery pack jiggles in the stock when you run with it. Other then that, I highly recommend this gun. M16:)"

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5 A&K Airsoft Full Length M16A3 AEG Rifle - Full Metal Gearbox *****
A&K M16A3

"I would like to start by saying just how much I was impressed by this weapon. When I saw on the website that this guns was a polymer body rifle, I was a little worried. I open the package and gave the gun a good looking over. The weight is VERY realistic,it weighs very close, if not exactly as much as a real M16A3. The upper and lower reciever are ABS plastic, but the rails, the barrel, and what feels like most of the internal latice work are all metal. The gun puts out at about 350 fps, which is expected. The overall performance of the gun is FLAWLESS. I used .20 gram BB's (which is recommended) for the field test, and it hit cans at 140 feet. This weapon is one of the BEST I've ever had the pleasure of shooting. Pair this gun up with a good set of optics and you've got yourself a amazing gun!"

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5 A&K Airsoft Full Length M16A3 AEG Rifle - Full Metal Gearbox *****

"The only bad part is the battery it is huge. "

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5 A&K Airsoft Full Length M16A3 AEG Rifle - Full Metal Gearbox *****

"this gun is amazing even though its not metal don't let u turn u off of it if u like it get it its a beast on the field i love this gun"

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5 A&K Airsoft Full Length M16A3 AEG Rifle - Full Metal Gearbox *****
very nice

"this is very good gun i was impressed with the range. The only bad part i can think of is the barrel guard the place were your hand go's when you hold the gun has a very plasticly feel to it,but i think you can replace it with a metal barrel guard. it can with a orange metal flash hider which was nice and it has battery and charger."

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3 A&K Airsoft Full Length M16A3 AEG Rifle - Full Metal Gearbox *****
All right

"Well by starts the gun looks great when you first look at it. When you pick it up it feels all right. I noticed the barrel was slightly slanted to the left. For my first gun I was happy. When i shot it i thought i went far, or at least far enough. I turned the hopup all the way up and it barely did any thing. Then I played an airsoft game with my friends and it turned out it didnt work that well. It went about 50 to 60 feet before it the bb dropped. So i had to get fairly close to my targets. My friends JG M4 S-System out ranged my weapon so it was a big pain. But for the most part its decent the gun. I say spend a little more and get something that will be more versatile and better in performance. I just really hate the plastic body, oh and my dust cover fell off, kinda lost that, so spend a little more."

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2 A&K Airsoft Full Length M16A3 AEG Rifle - Full Metal Gearbox *****

"Barrel points to the left, and I cannot find an easy fix. I took it apart to see what was going on and the metal barrel going into a plastic receiver doesn't help the situation. I was hoping I needed to just tighten a nut or something but everything was tightened down as far as it will go. I also have a problem of the gun misfeeding a BB, then shooting 2 the next time I pull the trigger. And this happens EVERY SINGLE TIME. No BB, then 2, no BB, then 2. And the worst part, one BB bloops out while the other fires nice and straight downrange. Battery is a cheapo battery, but so far holds a decent charge. Overall I am disappointed in this gun. I will be investing in a better M16 down the road, preferably a Vietnam accurate rifle."

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2 A&K Airsoft Full Length M16A3 AEG Rifle - Full Metal Gearbox *****
Decent but No Beuno for Avid or Amateur Airsofters

"When the M16a3 came, I was excited. Its maximum fps on my Chrono was 345. Minimum at about 303 Fps. This was disappointing. Very big gap and low scores in the Fps. It was decently accurate on Full auto and very accurate on semi. Then I got a little bit more excited until....The upper reciever bolt broke. The whole upper reciever fell down and the gear box was exposed and it was worthless. I called a Airsoft Megastore Customer Care Team Worker and they offer me a new one. I got the new gun a few weeks later and the same exact thing happened. If you listen too me which you obviously won't because reviews are nothing more than a rant DO NOT BUY THIS GUN. Save the money and buy a gun that has a higher Fps and maybe a METAL RECIEVER?! M16's are not ment to be plastic. ~Be safe and call your hits!"

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