Echo1 850rd FAT Magazine for M4 / M16 Series Airsoft AEGs


Model: MAG-E1-FAT-B
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5 Customer Reviews

by mike l. on 03/24/2013
"I use two of them in my KWA M16. Best support set up ever. These things fit in it as good as the Kwa mid-caps. Never had an issue. Both of them i have put 20 mags on each so far. If i wind them up enough i can get one heck of a burst out of them. They are kind of expensive, But totally worth the money, Especially if you want to be support but don't wanna spend all the major amounts of money.


Comparability with KWA
850 rds, but can still fit in some m4 pouches
Durability and reliability


Wish it was cheaper so i could buy more.
by john o. on 03/07/2013
"These are beautiful mags, i have had no misfeeding after a little bit of oil. They work 5x better than the mag i got with my gun.

- super hi capacity
-doesn't look to awkward in the gun

- none that i have found
by Dave C. on 10/25/2012
"Amazing mag!!! The only problem I had was it was a little loose in my Javelin M4, but then again all of the M4 mags I have are. The simple fix was two layers of electrical tape about 2 inches below the top. The mag feeds well and holds plenty of ammo. Perfect for the squad support gunner and a must have! I would give it 4 1/2 stars if I could and only because it's not 100% compatible with all guns.
*Rifle in image not included.
Echo1 850rd FAT Magazine for M4 / M16 Series Airsoft AEGs
A clone of the real steel fat magazine allowing a low profile magazine and high capacity at the same time!

  • Full Metal Construction
  • Holds a massive 850 rounds!

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

    Manufacturer: Echo1

    This product was added to our catalog on Tuesday 10 January, 2012.

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