Echo1 USA Stag-15 M4 RIS AEG Airsoft Rifle w/ CNC RAS Unit

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Echo1 USA Stag-15 M4 RIS AEG Airsoft Rifle w/ CNC RAS Unit
Echo1 USA Stag-15 M4 RIS AEG Airsoft Rifle w/ CNC RAS Unit
Echo1 USA Stag-15 M4 RIS AEG Airsoft Rifle w/ CNC RAS Unit
Echo1 USA Stag-15 M4 RIS AEG Airsoft Rifle w/ CNC RAS Unit
Echo1 USA Stag-15 M4 RIS AEG Airsoft Rifle w/ CNC RAS Unit
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Zephyr Sale Price:$175.00
Compare to: $250.00Save $75.00 (30%)

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Manufacturer: Echo 1
Mfg. ID: JP-12
Sku: AS-ECHO-JP-12

It is an exact replica of the famous assault rifle that is in use with the U.S. Military today. It comes with a retractable stock that makes this gun great for CQB and outdoor. The working charging handle gives this gun a realistic action that even higher priced guns do not have. The M4 RIS comes with a M4 length RIS unit that allows you to mount accessories like flashlights, lasers, fore grip, etc. The RIS also includes a battery box that can house an 8.4v 1500Mah custom made battery. ECHO 1 AEGs are fully upgradeable and compatible with most aftermarket external and internal parts. This airsoft gun includes a metal hi-capacity magazine and is also compatible with other major brands of standard and high capacity after market magazines. This gun is a must buy for those looking for a good priced starter gun.


  • Full metal V2 gearbox.
  • Steel gears.
  • Metal spring guide, bushings, & outer barrel.
  • Retractable LE stock
  • M4 Length RIS unit
  • Working charging handle
  • Metal hi-cap magazine
  • Stag Arms trademarks
  • Large battery box
  • Flip-up rear sight
  • Inner Barrel Length: 363mm
  • Barrel Caliber: 6mm
  • BB Capacity: 300rounds
  • Initial BB Speed: 360fps
  • Battery Type: Battery Box(Custom)
  • Battery charge time: 5 hours.
  • Package Includes: Manual, Hi-cap Magazine, Loader, Cleaning Rod, 1500mah 8.4v battery pack, 300 mah charger.

We recommend only using high quality .20g and .25g BBs for higher performance, better accuracy and to prolong the life of your gun.


YOU MUST BE 18 YEARS OR OLDER TO BUY ANY AIRSOFT, AIR GUN OR AIR RIFLE IN OUR STORE. It is the consumers responsibility to verify that Airsoft or BB Guns are legal in your state and local jurisdiction. Zephyr Sports is not responsible for guns confiscated by local law enforcement. Adult signature will be required by the shipping carrier for all shipments that contain: air guns or airsoft guns.

All Airsoft replica BB guns include a safety orange muzzle tip in accordance with Federal law. Any attempt to remove the orange tip is a violation of Federal law. Modified Airsoft Guns will not be accepted for return or exchange.

Airsoft Gun BB Warning

You must use .20 gram or higher AEG Quality Airsoft BB's with this Airsoft Gun. Using .12gram, re-used, low quality/low grade, translucent, or BBs purchased from large discount stores or major retail sporting good chains will void the warranty on your Airsoft Gun. High quality bb's meant for your AEG will enhance your playing experience and save you money in repairs down the road.

Zephyr Sports Airsoft Battery Disclaimer:

Zephyr Sports is not responsible for batteries that have been damaged as a result of improper operation, storage, misuse or abuse, accident or neglect, such as physical damage resulting from misuse; contact with liquid, water, rain, extreme humidity or heavy perspiration, sand, dirt or the like, extreme heat, or food; use of the battery for commercial purposes or subjecting the battery to abnormal usage conditions, or other acts which are not the fault of Zephyr Sports. Make sure you understand how your battery should be used and how long it should be charged. We recommend that you always use a smart charger to avoid damaging your airsoft batteries. If you have any doubt regarding the operation, charging, or storage of your battery and/or charger, please contact us. A charging battery should not be left unattended and should be picked up periodically while charging to check for overheating. Do not charge batteries near flammable material.

NOTE TO CUSTOMERS: Due to legal restrictions, we are unable to ship any airsoft products to Canada. We apologize for the inconvenience.

write a review
Zachery Kelts of USA
i like the M4 it is very good to use and it has very good accuracy and has a good back sight. I would purchase this gun to act like i am in the Military Assistance Command Vietnam Studies and Observation Group (MACV-SOG) like Woods from black ops. I would use this gun and just try to get good shots at my enemies in airsoft who are my friends in real life. I think the M4 is very good to use a lot of force and to make sure people can know what they are up against when fighting airsoft
Michael Marchette of Garden Grove, CA
Decent Gun
This is a pretty great airsoft rifle for pretty much anyone. It has great weight to it as well as being very well built. It's constructed of full metal, and has a pretty high rate of fire along with a great fps for field games. The accuracy on this is about average but can be improved as long as you have the better grade bbs. The one thing is that unless you modify the hand gaurd where the battery goes into and you use a 9.6v battery like I do, it may be a struggle without a peq box. For the ...