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340 FPS A&K Airsoft M4 RIS Carbine AEG Rifle - Full Metal Gearbox

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  • Model: M4
  • Muzzle Velocity: 340 FPS
  • Build Material: Polymer Receiver, Metal Rails
  • Weight: 6.5 lbs
  • Overall Length: 33" in.
  • Inner Barrel: 363 mm
  • Battery Type: 8.4V Nunchuck
  • Gearbox: Version 2 (Metal)
  • Magazine Capacity: 300 rounds
  • Color: Black


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Our take:  The A&K M4 RIS Carbine AEG is part of A&K's new line of performance oriented, quality CQB AEGs. These polymer-receiver A&K AEGs are built to be high speed, and perfect for close quarters 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 M4 RIS Carbine includes a rechargeable battery, a standard wall charger (we recommend picking up a premium AEG smart charger), a 300rd high capacity metal magazine, a tactical foregrip, two rail covers, and a metal replacement flash hider! The M4 RIS Carbine AEG has great range despite its compact size, shooting accurately over 100 feet! The M4 RIS Carbine AEG can easily pick off the opposition at long distances, keeping you out of the opposition's range!

The M4 RIS Carbine features a fully adjustable 6 position tactical crane stock, making this AEG more maneuverable and well adapted for close quarters combat. This M4 RIS Carbine AEG can also easily hold its own in an outdoor environment. With a precision inner barrel and fully adjustable hop-up, it can easily hit targets beyond 100 feet! The M4 RIS Carbine AEG features a high-quality impact-resistant polymer upper and lower receiver, a full metal rail system, a full metal outer barrel, and metal front and rear iron sights. The full metal rail system is crafted from lightweight anodized aluminum, and is perfect for attaching a variety of tactical accessories and upgrades. The polymer components on the rifle are the retractable stock, carrying handle, and the motor grip. The A&K M4 RIS Carbine's construction is extremely durable, and has an ergonomic feel and realistic weight.

The A&K polymer body M4 RIS Carbine has a redesigned and reinforced metal gearbox with a factory installed high speed motor, making it one of the best-performing  polymer body M4 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 M4 RIS Carbine also features a two-piece hop-up unit as well as a 6.04mm precision inner barrel (Airsoft Megastore carries 6.03mm tightbore inner barrels by Madbull), providing excellent range and accuracy. The M4 RIS Carbine can easily hit targets at over 150 feet away!  

Overall, the A&K M4 RIS Carbine 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 M4 RIS Carbine provides great accuracy and hard hitting power in a compact carbine size platform. If you are looking for a lightweight CQB 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 adjustable red dot scopes and accessories
- High performance AEG rifle, shooting at 300-340 FPS!
- Extremely durable
- Ready to go out of the box!

Operations:  Electric Automatic
Firing Modes:  Semi-automatic and Full-automatic w/ functional safety
Build:  Polymer receiver, stock, grip / Metal gearbox, rails, outer barrel
Muzzle velocity:  300-340 FPS with 0.20g BBs
Magazine:  300rd High Capacity (gear wind-up)
Gearbox:  Full Metal Version 2
Battery Type:  8.4V Nunchuck Type
Rate of fire:  13 RPS (Rounds per Second) with an 8.4v battery
Inner Barrel Length:  363 mm
Weight:  6.5 lbs

Package includes:  A&K M4 RIS Carbine, 300rd hi-cap magazine, a vertical fore grip, 2 x rail covers, 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 8 Review(s)
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Product Reviews

5 340 FPS A&K Airsoft M4 RIS Carbine AEG Rifle - Full Metal Gearbox *****
Worth every penny!

"This without a doubt was worth the buck. Personally, I'm not really into the whole Airsoft competition but I definitely miss holding my real M4 (Temporarily in Korea, yes they do international shipments). I watched a few Youtube videos of this before I purchased, and turned out exactly how I wanted it to be. And for those who are clueless about guns. Fore grip, pistol grip, rail gaurds and buttstock ARE SUPPOSED TO BE PLASTIC. Not metal. So stop complaining that "unfortunately" they shipped you plastic parts. But yes the gun itself is full metal. I also suggest buying the 'Gel Target' for $6.95 that they sell here as well. That thing is magnificent. It was able to withstand the .20g BBs from this weapon. BBs sticks to the gel and slowly falls onto the catcher right below it. Mess Free. Good for zeroing. Thank you Airsoft Megastore!"

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5 340 FPS A&K Airsoft M4 RIS Carbine AEG Rifle - Full Metal Gearbox *****
Can't beat this gun, especially for a beginner.

"I bought this gun just before Christmas for myself and so far have been very happy with it. I've also added some extras since such as a quick release bipod in the fore grip, carry handle rail mount with 4x28 scope for sniping, video camera on the side to see my accuracy and a new flash hider. The battery is an extra long 4200 mAH stock battery which has lasted longer than any of my friends batteries whether they be stock or not. I also just ordered a 5000 round A&K box magazine for the "spray and pray" shooting. This gun is great for using as a sniper rifle or just holding down the enemy. Between the price and how this gun may be used you CANNOT go wrong. I'd give it more stars if I could.."

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5 340 FPS A&K Airsoft M4 RIS Carbine AEG Rifle - Full Metal Gearbox *****
Good Gun

"Pros: Good rof Accurate Good Fps Real Feel Working Charging Handle Comes With Lots Of Accesories No Wobble Good Sights Cons: Forward Assist Sometimes Pops Out A Little Top Heavy Sometimes it Doesn't Feed Right Battery is Hard to Put In Stock Doesn't Go All the Way in w/ Battery"

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5 340 FPS A&K Airsoft M4 RIS Carbine AEG Rifle - Full Metal Gearbox *****
Great Gun

"This gun is fantastic. It came packaged with everything that says is included, plus mine came with a screwdriver and an extra metal flash hider. Everythin on it is metal except for the stock, lower reciever, and magazine. Pros: Shoots fast Lots of metal for "plastic body" Cheap Lots of accessories included Hop-up is very easy to adjust Charging handle pulls as far back as real-steel M4 Cons: Mine didn't come with directions, b ut it is easy to figure out how to use Overall a great gun and one of my best buys! The gun comes with an extra orange metal flash hider along with the plastic one attached to the gun. To take off the plastic one put it in warm water and the glue will melt. Then thread on the extra orange metal flash hider and your done."

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4 340 FPS A&K Airsoft M4 RIS Carbine AEG Rifle - Full Metal Gearbox *****
good gun

"i got this gun a couple weeks ago.i had been using an ak but the selector switch kept getting messed up so i got this one. it is a pretty good gun. god fps, decent rps, solid body. the only thin i wasnt real happy with was the range but its probably cuz of the short barrel. also i cant figure out how to put on the other tip."

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4 340 FPS A&K Airsoft M4 RIS Carbine AEG Rifle - Full Metal Gearbox *****

"Ive had this gun for a while but the upper reciver poped its an easy fix but it will happen every so often so be prepared not best distance but it is moderate great for optics and for charging its easy and quick if you want to turn this gun into something amazing then buy a tightbore 6.04 barrel and just buy a new reciver and you have a 150 dollar rifle into what may be a 350 dollar rifle those upgrade should be purchased IMEADTLY AFTER GETTING THIS GUN DO IT i did it turn this into intermediate to PRO "

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4 340 FPS A&K Airsoft M4 RIS Carbine AEG Rifle - Full Metal Gearbox *****
overall good gun

"Fisrt off in regards to previous reviews it does come with a metal tip which is also orange and to replace is simple a very small hex screw removed the unscrew the entire tip off. all of these posts highlight my largest complaint, it comes with no owners manual and while most of it is self explainitory there are some questions that will arise though nothing that seems to be critical. The advance button which is purely cosmetic didn't seem to want to stay in place but gently bending the tab out fixed that. Came with one sling clip on the barrel but nothing by the back of the gun where it's better to have a single clip. All minor complaints except the manual. Otherwise the build quality feels good, shoots strait, good distance once the hop up is adjusted just feels like you expect it should with almost all but the upper and lower casings being metal good weight and again feels very solid. At 75 ft can consistently hit a metal poll so very accurate. Great value for the price."

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4 340 FPS A&K Airsoft M4 RIS Carbine AEG Rifle - Full Metal Gearbox *****
A&K M4 RIS Enhanced 2012 Version Review

"For starters, this gun is GREAT. This has great performance per dollar you spend. It fires about 350-370 fps out of the box, but that will wear down to about 310 fps after about 8 months. This gun is great to upgrade, and upgrading is a must for this gun after 8 months. All and all, its a great gun for BEGINNERS. If you are more advanced, I would recommend buying a gun that actually has a metal body. My upper receiver broke, so I just decided to get a metal body and a one piece hop up (required for metal body) Pros: Cheap Pretty sturdy Moderate ROF and FPS Comes with battery and charger, but I HIGHLY recommend getting a smart charger. A 9.6v nunchuck battery would also be a good choice if you are upgrading this gun Pretty good internals Cons: Plastic body broke FPS weakens after use "

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