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Echo 1 Polymer M4 ST6 CQB-R Carbine AEG Airsoft Rifle (Dark Earth)

[P02D00][22210 / ECHO AEG M4 ST6 TN (JP-96)]
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The uncompromising quality of products and customer service from the Echo1USA brand shouldn't be a surprise. After all, these people are avid airsoft players themselves. They play with what they sell, and they don't want cruddy, overpriced gear any more than you do.

The Echo 1 M4 ST6 Airsoft Gun is one of Echo 1's latest additions to the airsoft market, and it is sure to impress. The body of the gun is constructed of high-impact ABS plastic. It is tough and rugged but significantly cuts down on the gun's overall cost and weight.

Patterned after weapons used by Navy SEALs, this gun boasts an intense skull and kill counter on one side and the Navy SEAL frog with the intimidating words, "You can run, but you can't hide," on the other. Let that serve as fair warning to your adversaries before you unleash this weapon's full fury upon them.

The front of the ST-6 features a 6.25-inch RIS unit that provides ample rail space for the addition of accessories, such as the vertical grip included in the box. You can customize this versatile gun to your own liking or update it as your tactics change or new products become available.

The RIS unit is easily removed by pulling back on the delta ring, much like standard hand guards, exposing the 10.5" shortened outer barrel, at the end of which rests a built-in sling swivel. The six-position adjustable crane stock also features a QD sling point, providing this gun, and you, with a multitude of carry options.

Overall, the Echo 1 ST-6 M4 is a lightweight, affordable airsoft gun that is sure to please beginning and experienced players alike.

Manufacturer: Echo 1
Model: ST-6 M4
Muzzle Velocity: 380-390 fps
Magazine Capacity: 300 rounds
Color: Tan
Package Includes: Gun, magazine, battery, charger, vertical grip, cleaning rod, rail covers


  • Lightweight ABS construction
  • Removable RIS unit
  • One-piece outer barrel
  • Intimidating markings

Please Note:

Airsoft GI Battery Disclaimer:
Airsoft GI 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 Airsoft GI. Make sure you understand how your battery should be used and how long it should be charged. If you have any doubt regarding the operation, charging, or storage of your battery and/or charger, ask. 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. For more information regarding batteries please refer to the Frequently Asked Questions or the Airsoft GI Airsoft 101 Guide.

Manufacturer: ECHO 1
Muzzle Velocity: 380-390 fps
Magazine Capacity: 300rds
Fire Mode: Safe, Semi, Auto
Color: Tan
Package Includes: Gun, Magazine, Battery, Charger, Vertical Grip, Cleaning Rod, Rail Covers
Outer Barrel Length: 10in
Stock Type: Adjustable Crane Stock
Sight: Iron Sights
Cylinder Head Type: Polycarbonate
Cylinder Type: Brass Ported
Piston Head Type: Polycarbonate
Piston Type: Polycarbonate
Air Nozzle Type: M4 / M16
Tappet Plate Type: Version 2
Spring Type: M110
Switch/Wire Type: Version 2
Selector Plate Type: M4 / M16
Cut Off Lever Type: Version 2
Anti Reverse Latch Type: Version 2
Motor Type: Long Type
Hop Up Type: M4 / M16
Inner Barrel Length: 300mm
Fuse: Yes
Connector: Small Tamiya
Warranty: 30 Day Manufacturer Warranty
Primary Build Material: ABS Plastic
Gear Box: Version 2

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I've seen videos with this gun with .2 bb's that chronoed over and under 400 fps is the 380 to 390 correct as my field has a 400 fps limit

1579 days ago
Zach M

(I have this same question)
Staff Answer:
Unfortunately, we can only give the best answer based on the manufacturer's specifications. Some batches can vary in FPS. That being said, the FPS will typically hover near or around the specifications, and will typically lower after a break in period.

1578 days ago
1 answers
1 asked
Search Tags: M4 RIS CQB Compact Retractable Stock High Capacity M4A1 Echo1

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