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Poseidon 180 Round Midcap Magazine for M4/M16 Series Airsoft AEG Rifles (Color: Tan)

ID: 67567 (Mag-Poseidon-M904-TN)
M904 MAG TAN - Matrix Packaging - Singles Pack
Poseidon 180 Round Midcap Magazine for M4/M16 Series Airsoft AEG Rifles (Color: Tan)
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Color Options:


  • Durable high strength polymer construction
  • Good compatibility with major brand M4 rifles
  • High strength spring ensures reliable feeding
  • No rattling sounds unlike high capacity magazines
  • Lightweight construction makes it easy to carry multiple magazines

Manufacturer: Poseidon


Capacity: 180 Rounds
Compatibility: For VFC, Classic Army, JG, ARES, G&G, Echo1, ICS, Matrix, Tokyo Marui and other compatible Airsoft AEG Rifles
Material: High strength polymer

Why Mid-Cap Magazines?
Mid-Capacity magazines offer stealth operation by eliminating BB rattle often experienced with Hi-Caps. They feed smoother than Hi-Caps due to their high tension internal spring, similar to a real steel magazine. Since 470 round Hi-Capacity magazines don't exist in real life, a good amount of Mil-Sim players prefer Mid-Cap magazines for an even more realistic type of gaming experience.

Due to the design of all Mid-Cap magazines, they actually function better once you break them in. To do so spray some light silicone oil into the magazine, load and unload it a few times until BB's feed smoothly. This process breaks in the internal spring allowing it to function without problems each and every time.

7 Customer Reviews

(Write a review)

by Cj m. on 07/08/2024
"These things are the bomb! Had 3 for a year now and ive thrown them, slide them, spiked them on tile flooring and they are still mint! Zero issues with these mags and they still feed just as well as when I first bought them. I can not recommend these mags enough.
by Anthony H. on 06/15/2024
"These things are insanely impressive, the black version that came with my AEG is feeding 40 rps perfectly in my SSG build. Don't know about longevity with it feeding this well currently, but its outstanding that it can keep up for only 10$ with 180 rds. Very good! Need to buy more!!! Guessing the tan ones are just as good. Have to order some and give those a try.
by Jack W. on 05/11/2024
"Good mags:
I I play milsim, so I need easily replaceable mags for cheap. These are durable and I don’t have to worry about breaking them while there on my chest rig. Very good and fed great at 25 rps. I really like these mags for there realism and similar look to magpul pmags.

Feeds fast
Looks good

No cons

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