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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.

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Cybergun Licensed Sig Sauer 556 RAS Full Metal Airsoft AEG Rifle

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$249.99Guaranteed Lowest
  • Muzzle Velocity: 410 FPS
  • Build Material: Metal Receiver, Outer Barrel
  • Weight: 8.5 lbs
  • Overall Length: 33" in. / 36" in.
  • Battery Type: 8.4V Stick
  • Magazine Capacity: 400 rounds
  • Color: Black
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Our take:  The Cybergun SIG 556 RAS is a beauty with a fully licensed full metal body (metal upper and lower receiver), enhanced full metal gearbox and high torque motor, TWO (x2) 400rd hi-cap magazines, and a heavy-duty ABS composite handguard/rails up front. This AEG is amazingly accurate with an AK47 length precision inner barrel, knocking out targets well beyond 150 feet! If you like using standard M4 type magazines, but don't want to conform with the masses, the unique and premium performance Sig 556 is the gun for you.

This SIG 556 features some of the most reliable and well built version three full metal gearboxes on the market.  Paired with this incredibly reliable metal gearbox is a high torque motor, easily capable of pulling up to an M140 spring.  This makes the AEG fully upgradable to become a DMR, without having to purchase an additional motor! The hop-up unit is similar to the G36 style hop-up units, and is easy to adjust.  This patented hop-up unit precisely adjusts the trajectory of the BB, providing you with laser accurate shots.  The precision inner barrel's length increases the overall effective range of the SIG 556, allowing you to shoot at sniper like distances.  The SIG 556 AEG uses a stick type battery, included, which is easy to install in the hand guard.  The Sig Sauer 556 AEG is a premium performing airsoft gun, that out-ranges most AEGs of the same size.

From the finish, power, and realism to the FULLY LICENSED laser-engraved trademarks on the body (along with small SiGARMS trademarks imprinted on various other places (including on the magazines, the pistol grip, and on the rear stock), we are thoroughly impressed with this rifle, and you will be too. With 0.20g BBs, FPS is measured at 360-410 FPS.
New Full Metal Sig 556 AEG Features:
- Fully Licensed SIG SAUER trademarks engraved on receiver
- Comes with TWO (x2) 400-rd high capacity magazines, along with a MAGAZINE connection unit that can stack them next to each other (for up to 800 rounds of capacity in one reload!)
- Full metal one piece performance outer barrel
- Integrated full length hand guard bottom rail plus 2 short side rails on hand guard
- Full metal gearbox with STEEL GEARS and reinforced internals works in conjunction with its high-torque motor for maximum performance, reliability, and accuracy
- This AEG is a 100% scale model of the real SIG 556 rifle
- Adjustable hop-up and selectable fully automatic/semi automatic firing modes, along with a functional safety mode
- 467 FPS using 0.12g bbs; 360-410 FPS using 0.20g bbs.  This firing power ensures that you will DOMINATE any airsoft game.  Accuracy and power are well balanced.
- Effective power/shooting range is up to 180 feet!
- Shoots at 14 rounds per second, or over 800 rounds per minute
- Premium battery and wall charger included

- Made by CYBERGUN
- Measures 33 inches long with rear stock collapsed, and 36 inches with rear stock fully extended
- Full metal gearbox and internals
- Fully adjustable hop up system
- Adjustable AIRSOFT full/semi automatic shooting capabilities
- Weighs in at 8.48 pounds or 3850 grams (extremely realistic)

Operation:  Electric Automatic
Firing Modes:  Semi-automatic and Full-automatic
Muzzle Velocity:  360-410 FPS with 0.20g BBs
Magazine:  2 x 400-rd high capacity magazines w/ clamp
Gearbox:  Full metal
Barrel:  Full metal
Hop-up:  Adjustable
Weight:  8.59 pounds

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, rechargeable battery, wall charger, instruction manual, TWO (x2) 400-round high capacity magazines with connection clamp

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.

Cybergun Licensed Sig Sauer 556 RAS Full Metal Airsoft AEG Rifle Categories:

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***** 4 / 5
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Product Reviews

5 Cybergun Licensed Sig Sauer 556 RAS Full Metal Airsoft AEG Rifle *****

"I had this gun for a few months now, and let me tell you that this GUN is worth the money!! It's a little bit heavy but everything else is just perfect!!!! Highly recommended!!!"

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5 Cybergun Licensed Sig Sauer 556 RAS Full Metal Airsoft AEG Rifle *****
sig 556

"First off this gun is.great it has power style and says I rule airsoft games.I only recommend you use .25 or higher for best result the Sig has a great feel.and weight to it get this.gun and dominate.."

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5 Cybergun Licensed Sig Sauer 556 RAS Full Metal Airsoft AEG Rifle *****
excellent airlift gun

"i just recently found this website while trying to find out how to fix a couple of my broken airlift gun. while looking on this website, i found this bb gun. granted i have not purchased from this site but i have purchased this bb gun at Academy and let me say: absolutely amazing bb gun. definite recommendation for anyone. i have literally only one complaint with this bb gun and that's the rear iron sight. but its nothing a drill bit can't fix. other than that, there is nothing bad about this bb gun."

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5 Cybergun Licensed Sig Sauer 556 RAS Full Metal Airsoft AEG Rifle *****

"This gun is a great gun all the way around. The only hard thing about it is putting the battery into the front area of the gun. I also had a problem with the holding pin that you need to access the battery compartment and to keep it in place. It broke in half. If this happens to you just go to Lowe's and buy a hitch pin and its all better. It's extremely accurate and the rate of fire is amazing. I has very nice trademarking located on it. . It comes with two magazines which is very nice. The flip sight is great too because there's not as much hassle that goes into putting a rds sight on. Just flip it down and put it on. It does weigh a lot so I reccomend getting a sling. Buy it!!"

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5 Cybergun Licensed Sig Sauer 556 RAS Full Metal Airsoft AEG Rifle *****
Amazing gun!!!!!!!

"This gun is amazing! The accuracy is so amazing. I was hitting my friends from over 150 feet away no problem. Like someone said this Is a gun for someone to use that is a lone wolf because people are going to be afraid of this, and they're all gonna want it. Nice weight, good accuracy, amazing realism. BUT, you run out of ammo quickly because they are 300 hi cap mags not 400. But just throw a grip, laser, and a sight, and a bipod. And you have yourself a nice semi-auto sniper rifle. It deserves 5stars!!!! I just ordered 2 more mags so I can have 4 but ordering another one Tuesday. Get this gun"

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5 Cybergun Licensed Sig Sauer 556 RAS Full Metal Airsoft AEG Rifle *****
Simply amazing!

"I just received this gun I couldn't be happier! As soon as I took it out of the box I was impressed by the wight of it. It's a nice solid heavy gun. It's also very good looking! I put the folding bipod that I had on my sniper on to this gun and it looks very good and it comes in handy. The ROF and just the power of this gun is also very impressive. I've used this in a few games so far with my friends and I've completely dominated! A couple things I don't like are the battery it comes with (it wouldn't work on my smart charger), the place where the battery goes (it's a pain in the butt the first couple times you go to put it in), and that there's a slight mag wobble. But I would seriously recommend this gun to anyone wants an amazing gun for under $300 Pros: Great ROF High FPS Good looking Uses M4 mags as well Full metal Accurate Cons: Battery May wobble"

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4 Cybergun Licensed Sig Sauer 556 RAS Full Metal Airsoft AEG Rifle *****
Great Gun small reason it didn't get 5 stars

"I've played 9 games with it and the mag release button came off so it's on it's way back to AMS for repair this is the only reason it doesn't get 5 stars. This gun has great power shoots straight and will cover some distance. It is also very quite in comparison to my Saw and my kids S.T.A.R. Dragons. The look and uniqueness is awesome and the build, outside of the mag release on mine obviously, is very good and sturdy you can just feel the realness in this gun. No guns are perfect so I'm not mad about the button just glad it happened quick enough to be covered by AMS 45 day warranty. If you want realism, great looks, quality gearbox, and a gun that your friends don't have (but will want after seeing yours), then this is the gun for you if you want to travel with the herd then head back to the ak or m4 section you're looking at the wrong gun."

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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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