Finish Build

Add Essentials

Select from the compatible essentials you need from the list below.

Choose your warranty to complete checkout

Weapon Shield 90

  • EXTENDED Industry Leading 90 Day parts and defects warranty
  • Covers for all repair work
  • Comprehensive Tech Support
  • Priority processing time, Ships within 1 business days
  • Shipping Insurance
Add & Checkout

Weapon Shield Extended 135

  • TRIPLE EXTENDED Industry Leading 135 Day parts and defects warranty
  • Covers for all repair work
  • Comprehensive Tech Support
  • Priority processing time, Ships within 1 business days
  • Shipping Insurance

+ Tech Inspection

  • FPS Chronograph Certification
  • Gearbox Cleaning
  • Gearbox Lubrication
  • Fuse Replacement
Add & Checkout

AMS Standard 45

  • Industry Leading 45 Day parts and defects warranty
  • Covers for all repair work
  • Comprehensive Tech Support
  • Standard processing time, 1-2 business days

AMS Proshop Warranty Options

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!

Customize It!
On Sale: Ending Soon!
product image

Echo1 STAG-15 M4 RIS Airsoft RC Carbine AEG Rifle

Get Free Shipping

  1. 1. Buy Any Regular Priced Item
  2. 2. or, Buy Any Sale Item + Any Non-Sale Item
  3. 3. or, Any Order Over $150
Free Shipping
$184.99Guaranteed Lowest
  • Model: M4
  • Muzzle Velocity: 400 FPS
  • Build Material: Metal RIS, Polymer Receiver
  • Weight: 6.5 lbs
  • Overall Length: 34" in.
  • Inner Barrel: 363 mm
  • Battery Type: 8.4V Large
  • Gearbox: Version 2 (Metal)
  • Magazine Capacity: 300 rounds
  • Color: Black
customize it!

3 Ways to get Free Shipping

  1. 1. Buy Any Regular Priced Item
  2. 2. or, Buy Any Sale Item + Any Non-Sale Item
  3. 3. or, Any Order Over $150
Free ShippingThis item qualifies for Free Shipping

Must Haves

BB CombosBBsExtra MagazinesFace & Eye ProtectionGun BagPremium BatteriesSmart Charger for AEGsUniversal Tactical Sling

Tactical Gear

Tactical Vests

Upgrades and Add-Ons

Flashlights & LasersOther AccessoriesScopes and OpticsTactical Foregrips
  • Details
  • Ratings & Reviews

Our take:  The STAG-15 AEG rifle by Echo1 is an authentic replica licensed by Stag Arms.  Featuring a shorter barrel, the RC RIS Carbine has a full metal, railed handguard that offers more than 24 inches of combined rail space.  You can also attach optics onto the top receiver rail for improved target acquisition.  To reduce player fatigue, the upper and lower receiver is made out of ABS polymer.  This makes it perfect for all players.  On the inside, this Echo1 AEG is equipped with a two-piece hop-up with Madbull bucking, polycarbonate piston with ported piston head, and an M120 spring with steel spring guide.  In addition to the front and rear sling mounts, the STAG-15’s stock  sports ambidextrous QD sling mounts, giving you the option to use one-point slings.  This M4 airsoft rifle comes with everything you need to field right out of the box, including a high-capacity magazine, rechargeable battery and standard wall charger.

- Officially licensed by Stag Arms
- Full metal V2 gearbox w/ 8mm bearings
- Shoots up to 400 FPS (w/ 0.20g BBs)
- 2-piece hop-up w/ Madbull bucking
- Polycarb piston w/ ported piston head
- M120 spring w/ metal spring guide
- Full stock with QD sling mounts
- Adjustable front and (flip-up) rear sight
- Forward and rear sling mounts
- 4X rail covers included

Operation:  Electric Automatic
Build:  Metal Rail System, Outer Barrel, Sling Mounts / Polymer Receivers, Stock, Grip
Firing Modes:  Semi-automatic and Full-automatic, w/ Functional Safety
Muzzle Velocity:  380 – 400 FPS (w/ 0.20g BBs)
Gearbox:  Full Metal Version 2
Magazine:  300rd High Capacity Magazine (gear wind-up)
Battery:  8.4V Large
Inner Barrel Length: 363 mm
Inner Barrel Diameter:  6.06 mm
Hop-Up:  Adjustable
Weight:  6.5 pounds
Overall Length:  34" 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.

Package includes:  Rifle, high capacity magazine, 4X rail covers, rechargeable battery, standard wall charger, mag winding key, elevation dial tool, cleaning rod, instruction manual

Color:  BLACK

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.

GUN FORGE - Custom Built by AMS Customers

People Also Viewed

More From Echo1

Write A Review

  • Please do not use the review feature to ask questions. Any reviews containing questions will not be answered, and will be deleted
  • Please keep your review clean of obscenities and other distasteful content
  • Please be detailed in your review, and talk about what you like/dislike about this product
  • Click here to review submission guidelines.


***** 4 / 5
Based on 1 Review(s)
  • (0)
  • (1)
  • (0)
  • (0)
  • (0)
Write Your Own Review

Product Reviews

4 Echo1 STAG-15 M4 RIS Airsoft RC Carbine AEG Rifle *****
worth the price

"This gun is really good, this is my first airsoft gun and I wasn't dissappointed. The out of the box, accuracy, fps,and rof are simply impressive, the only, and I mean the only problem with this gun is the hop up is off, the lowest setting shoots slightly high, but that is probably just mine."

Was this review helpful to you?

Free Shipping

45 Day Warranty

110% Lowest Price Guarantee

Best in Class Customer Service

Same Day Will Call Pickup

Same Day Local Shipping

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
Be our next fan! We are focused on long lasting customer relationships. Try us out. Find out why everyone is raving about Your Name, Your Location

Real People. Real Airsoft