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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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Airsoft Megastore Armory Metal AMR-4 RIS EBB AEG w/ MOSFET - DESERT

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$157.95Guaranteed Lowest
  • Muzzle Velocity: 380 FPS
  • Build Material: Metal Receiver
  • Weight: 6.8 lbs
  • Overall Length: 33" in.
  • Inner Barrel: 370 mm
  • Battery Type: 8.4V Nunchuck
  • Gearbox: Version 2 (Metal)
  • Magazine Capacity: 300 rounds
  • Color: Desert
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We're sorry to say that this item is no longer available for purchase at Airsoft Megastore. We will no longer be re-stocking this item. Check out more items here!

Introducing A.M.A. (Airsoft Megastore Armory) AEGs:
Airsoft Megastore Armory AEGs are designed from the bottom up with one goal, to provide airsoft players with the most realistic and fully upgraded premium performance AEGs for the best price. We feel that we have succeeded in our mission with our line of full metal electric blowback, factory upgraded, and MOSFET enhanced AEGs.

Our Airsoft Megastore Armory AEGs are a step above other AEGs on the market, providing a high degree of realism combined with superior accuracy, power, and range. We take such pride in our Airsoft Megastore Armory AEGs, that we have emblazoned the A.M.A. logo on each lower receiver. Each A.M.A. AEG is thoroughly inspected and tested to ensure the highest level of performance. Welcome to the Airsoft Megastore Armory, where serious airsoft players load up. Your weapon is waiting!

Performance Guarantee:

All Airsoft Megastore Armory AEGs are built to outperform and outlast the competition, which is why we cover our entire line of A.M.A. AEGs with an industry leading 60 day limited warranty. Our warranty covers your AEG for twice as long as most “premium” brand airsoft manufacturers, because we know our guns are built to last. Ten to thirty days is never truly enough time to really field an airsoft rifle and ensure that it is problem free, which is why our extended 60 day limited warranty is designed to provide you with ample time to test our AEGs’ quality and performance. At the Airsoft Megastore Armory, our first priority is your satisfaction!

The AMR-4 RIS is the railed version of the standard M4A1 platform, featuring a rugged full metal hand guard rail system providing plenty of space for attaching a variety of tactical accessories.  With a sleek modern design and internal modifications and upgrades, the AMR-4 RIS truly stands out in the crowd of other railed M4 AEGs. Featuring a rugged full metal body for an authentic feel, and a powerful electric blowback system, this AMR-4 RIS is one of the most realistic M4 AEGs on the market!

Battle Ready Exterior:
From the barrel to the buffer tube, the AMR-4 RIS is built from solid and extremely durable metal with a full metal railed hand guard, and a nylon polymer motor grip and stock. We have included a functional locking charging handle to provide quick and easy access to the hop up unit, and a functional bolt release that slams the mock bolt home when pressed. The rugged lower receiver features the exclusive A.M.A. logo as well as an individualized serial number.  One of the more intuitive features of the AMR-4 RIS is its large railed hand guard, which provides plenty of space for storing most NiMH and LiPO nunchuck style batteries, making it easier than ever to swap batteries while on the field.  With a full rail interface system, the customizable opportunities are endless, and allows you to easily swap out different equipment for all types of scenarios.  The full metal chopped rear sight is fully adjustable for windage and elevation, and is also removable, exposing a long optics rail on top of the full metal upper receiver. Unlike standard railed M4 AEGs, the AMR-4 RIS features an ergonomic textured motor grip and a contoured trigger guard to relieve hand fatigue. The six position retractable nylon polymer stock is also ergonomically designed, with a rubber butt pad and larger cheek rest. It also features a small lower compartment for storing extra accessory batteries, and a bottom sling swivel. The overall external construction of this Airsoft Megastore Armory AMR-4 RIS AEG rivals top of the line AEGs, but with an exclusive and unique look that is sure to turn heads!

Revolutionary Upgraded Internals:
We have taken one of the best electric blowback Version 2 gearboxes on the market and further enhanced it by adding top of the line internal components as well as low resistance silver core wiring and an enhanced MOSFET! A MOSFET wired AEG for under $250.00 is virtually unheard of in the airsoft world, let alone an upgraded electric blowback full metal AEG! The Version 2 electric blowback gearbox features 7mm metal bearings, a bearing spring guide, a bearing piston head, a full metal air nozzle, and a powerful M120 spring! To enhance the range and accuracy of the AMR-4 RIS, we also included a 6.03 stainless steel tight bore inner barrel, giving it pinpoint accuracy and making it easily capable of hitting targets at 150 feet! The electric blowback feature of the AMR-4 RIS is crisp and loud, and provides a small but noticeable amount of recoil which adds to the realistic feel and performance of this AEG. No other stock AEG on the market comes with all of these features and upgrades installed and ready to go right out of the box! The AMR-4 RIS truly is one of the most advanced AEGs available on the market, and priced well below most “premium” airsoft guns.

Incredible Value:
At Airsoft Megastore, we are committed to bringing you the best products on the market for the lowest possible price, which is why we developed our Airsoft Megastore Armory line of AEGs. Our A.M.A. AEGs built for high octane performance with an upgraded electric blowback gearbox, a factory installed MOSFET, a tight bore barrel, and full metal construction, and priced well below other “premium” AEGs. Not only do our AEGs have more out of the box upgrades and features than most “premium” brand AEGs, they also feature an industry leading 60 day limited warranty!

- Full Metal Construction (with Nylon Polymer stock, & motor grip)
- Full Metal Railed Hand Guard with Mil-Spec numbering
- Electric Blowback Version 2 Full Metal Gearbox
- Low resistance silver core wiring
- Enhanced MOSFET installed
- 6.03mm tight bore inner barrel
- 7mm Gearbox bearings
- Bearing spring guide & piston head
- Functional, locking, charging handle and bolt release
- One piece plastic hop-up
- Removable chopped rear sight
- Top optics rail on upper receiver
- Front & rear sling mounts
- Functional Safety
- Individualized serial number laser engraved on each lower receiver

Tech Specs:
Operation:  Electric Automatic, Electric Blowback
Build:  Full metal body, full metal gearbox (polymer hand guard, stock, & grip)
Firing Modes:  Semi-automatic and Full-automatic w/ Blowback
Muzzle Velocity: 360-380 FPS with 0.20g BBs
Magazine: 300-round high capacity (gear wind-up)
Gearbox:  Full metal EBB Version 2
Inner Barrel:  370mm, 6.03mm Tight Bore
Outer Barrel Threading: CW (Clockwise)
Battery Type: NiMH or LiPO Nunchuck Battery
Hop-up:  Adjustable Version 2 One Piece
Weight:  6.83 pounds
Overall Length:  33" in.


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.

NOTE: This Airsoft Megastore Armory AEG DOES NOT come with a battery or charger.  CLICK HERE for our VB Power Battery & Smart Charger Combo Package!

Package includes: Rifle, instruction manual, 300-round high capacity magazine

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 Airsoft Megastore Armory Metal AMR-4 RIS EBB AEG w/ MOSFET - DESERT *****
Durable. Realistic. Upgraded.

"The blowback makes the gun have a slight kick which adds to the realism. It has great range and okay FPS. Although the gun slightly shoots the BB to the right. I give it a 9 out of 10 just because the BB goes to the right. (Maybe I should adjust the Hop UP?). The gun is very well built its FULL METAL(except the grip and the stock which is VERY STRONG ABS plastic) THE BATTERY GOES IN SO EASY!!! And it has a very GOOD ROF. It is the strongest built airsoft gun I have ever touched or seen. Oh and if your going to get this GET A SMART CHARGER.!!!! It will save you time and money! "

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5 Airsoft Megastore Armory Metal AMR-4 RIS EBB AEG w/ MOSFET - DESERT *****
Best gun I've ever seen, or owned.

"By far, this is the best AEG you can get for your money. Pros -Incredibly durable body, made EXTREMELY well -Tons of rails -Crazy High RoF (I use a 9.6v) -Great fps -Accuracy is beyond real. The 6.03 really shows, my iron sights are perfect and the bb literally flys perfectly straight with .2g's. All you need to adjust is hop up. -EBB is nice, and the gun is pretty loud from it. -Stock is very easy to adjust. -The battery is a breeze to put in compared to those that use crane stocks. It goes in the rails, and nunchuck batteries fit best with plenty of room and no overly bending wires. Great design. -Mag fits in really well -MOSFET-enough said Cons -You're going to have to restrain your yourself, otherwise you'll end up buying 5. Compared to the G&G Raider XL which I also have that was the same price, this is a much better value by far. Everything the G&G does this gun does better. "

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4 Airsoft Megastore Armory Metal AMR-4 RIS EBB AEG w/ MOSFET - DESERT *****
good and nice looking gun performs well

"This was my first blowback m4 and it shoot around 360- 365 fps on a chrono i used. blowback feature looks and sounds nice enough recoil to make it seam more realistic but not enough to through off your shot.not a high rate of fire but not too low either.pros- shoots accurate and good fps light looks and sounds realistic, has a tight bore barrel which increases its accuracy,not to expensive for a blowback, strong plastic and is also metal, comfortable tango down grip. cons- does not come with a battery.i bought a 9.6 numchuck. the battery is not hard getting in its getting the bottom rail back on to enclose the battery is a little of a struggle,eventually you can find ways to make it easier or you can get a peq box instead.doesn't come with a charger, GET A SMART CHARGER will make ur battery last much longer and perform better. mag is a little wobbly but not too bad. i use it in cold weather it performs fine for me. p.s.- when u put the battery in the compartment put it in as far as it can go and just charge it in their little more simpler."

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2 Airsoft Megastore Armory Metal AMR-4 RIS EBB AEG w/ MOSFET - DESERT *****
dont buy this!

"yeah well i bought this gun about a month ago it broke within about 2 weeks. the motor burned out i dont know why i had the right bbs (goldenball) anyway i liked this gun thought it was good because of the video and the comments but they were misleading. pros- good fps, fast rof, nice feel, metal. cons- broke way to fast (sent it back), buttstock wobbly ,mag wobbly ,did not come with battery. so yeah i would not recommend this gun if you are in cold weather."

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1 Airsoft Megastore Armory Metal AMR-4 RIS EBB AEG w/ MOSFET - DESERT *****
DO NOT BUY THIS !!!!!!!!

"i got this for Christmas this year and went out to shoot it very first day. bbs were falling out of the barrel. when i pulled then trigger, semi and fully auto both, it took 3 or 4 pulls to the trigger to get one shot off. sent it in, they "fixed it" and sent it back. i was then shooting it and all of sudden stopped working. charged the battery and got the same results. Highly do not recommend this buy."

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