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Echo1 850rd FAT Magazine for M4 / M16 Series Airsoft AEGs (Color: Black)

ID: 37496 (MAG-E1-FAT-B)
ECHO1 / JAG810945023015MAG-ECHO M4 FAT BLK37496
4.2 stars, based on 17 reviews
Echo1 850rd FAT Magazine for M4 / M16 Series Airsoft AEGs (Color: Black)
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This item is currently Sold Out

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The manufacturer of this product enforces a strict minimum advertised price (MAP) policy which excludes this product from any additional discount coupon codes. This item, however, may qualify for free shipping.
Color Options:


  • Full Metal Construction
  • Holds a massive 850 rounds

Color: Black

A clone of the fat magazine allowing a low profile magazine and high capacity at the same time!

Caliber: 6mm Airsoft BBs
Magazine Capacity: 850 rounds
Magazine Type: Hi-Capacity, Integrated Winding Wheel

Manufacturer: Echo1

About ECHO1 / JAG

Since its inception the Echo1USA brand has strived to provide our clients with uncompromising quality of products and customer service. As avid Airsoft players ourselves, we are able to understand the needs of the sport and the frustration with inferior products. Our commitment to yielding the finest most affordable Airsoft Guns and Accessories on the market today is steadfast, and remains the foundation of our continued success.

17 Customer Reviews

(Write a review)

by Jerry S. on 07/29/2021
"Love these. Solid construction. Have 5. We use these for days we know its going to be rough game play. Dont have to worry about breaking externals. If our team isnt playing too hard we use the matrix 1000 hicaps which are plastic. All feed fine and weve had no problems with them.
by Stephen H. on 06/15/2018
by Carol S. on 11/04/2016
"Got this for my KWA M16 which was $285
It is the only mag I need to carry.

Metal body (solid)
Fits better than the mag that came with the gun
Fits in my M249 which is broken );
Fits in G&G raider m4
Feeds fine with the 11.1 lipo in M16
Barely have to reload
I love going prone and this mag allows me to do so
No holes in bottom of mag for dirt to get in

Cons: spinning the winding wheel all the time gets
annoying, but better than needing to reload

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