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Matrix 850rd "FAT Flash Mag" Hi-Capacity Magazine for M4 / M16 Series Airsoft AEG Rifles - Black

ID: 56161 (MAG-EX0103-B)
4.3 stars, based on 3 reviews
Matrix 850rd FAT Flash Mag Hi-Capacity Magazine for M4 / M16 Series Airsoft AEG Rifles - Black
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Rifle shown in images not included.


This item is currently Out of Stock Usually restocked within 1-3 weeks.
Add to your wishlist to stay posted!

*Rifle shown in images not included.Sometimes, reloading is just too much of a hassle.


  • Heavy duty stamped steel construction
  • Carry an entire squads worth of ammo on your rifle
  • Fits most M4 / M16 AEG rifles (Including KWA)
  • Fast winding via pull string to quickly get you back into the fight
Compatibility: For Tokyo Marui, Matrix, JG, KWA and other compatible M4 / M16 series Airsoft AEG rifles
Capacity: 850rds

Manufacturer: Matrix

California residents click here for Proposition 65 warning

3 Customer Reviews

(Write a review)

by Vaughn H. on 09/24/2016
"Bought this on a whim, so far it has feed reliably.
Only one issue, it's a very tight fit in say a KWA M16, so much so, filing or sanding down a little of the outside of the mag is probably a thing to look into. Can't speak for other brands.
by liam k. on 07/14/2016
"I purchased the fat flash mag in order to see how reliably they fed in an assortment of my aegs, pending possible future purchases of these mags. They would not fit my vfc/echo 1 xcr's magwell. I could likely just sand down the upper section of the magazine a bit. It fit and fed my APS Christmas Special aeg well, likely due to the flared magwell design giving it a bit more wiggle room. Most importantly, it fit and fed well in my A&K m249. These mags would be a solid purchase for anyone running an m249 or similar lmg that feeds from a STANAG magwell (m16,l86, g36 w/magwell, etc. Just be aware of magwells with tight tolerances such as g&p, vfc, etc. The cord for this box mag is a bit stiffer than the lonex flash mag one, and the door on the bottem seems prone to snapping off. Will still likely purchase 3 or 4 more in order to supplement my lmg loadout for long/multi day events or if my box mag takes an a&k style dump.

Overall, would recommend purchasing multiple of these before they disappear.
by noah s. on 02/12/2016
"Surprisingly, this gun feeds my high speed build at 36 rps and works fine. Haven't taken it to a game yet and I normally use mid caps but just bought it because it was cheap. A+

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This item is currently Out of Stock. Most out of stock items are restocked within 1-3 weeks. Some items may take longer. Please add this item to your wishlist to keep posted on its availability.