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King Arms 140 Round Polymer TWS Magazine for M4/M16 Series Airsoft AEGs (Color: Black)

ID: 81416 (Mag-KA-MAG-77-BK)
King Arms 140 Round Polymer TWS Magazine for M4/M16 Series Airsoft AEGs (Color: Black)
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King Arms / Eagle Force


Color Options:


  • Injection molded polymer body
  • Textured body makes magazine manipulation easy in all conditions
  • 140 round capacity
  • High tension spring for reliable feeding
Compatibility: M4/M16 series Airsoft AEGs
Capacity: 140 rounds
Materials: Injection Molded Polymer

Manufacturer: King Arms

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.

About King Arms / Eagle Force

King Arms was founded in 2004 with the mission to ensure optimum customer satisfaction by providing precision products and outstanding service. In 2015, we moved our headquarters from Hong Kong to Taiwan where we've continued to provide excellent products with the highest quality. While working with leading firearms manufactures, we provide to our customers a level of innovation and authenticity that can't be found anywhere else in the Airsoft industry. This goal is what continuously drives us to improve and gives us purpose.

4 Customer Reviews

(Write a review)

by Chris N. on 11/22/2019
"Amazing quality and good feeding Also very attractive
by Ryan D. on 11/08/2020
"AVOID. Don’t be fooled by the price, spend the little extra. Thought I was getting a deal with these mags, but they don’t feed, and if you load more than 70-80 the magazine actually starts to split apart.
by tim s. on 03/20/2020
"Do not buy. the BBs actual got past the follower and into the spring. 30 BBs will jam the follower and will not feed. I am going to send back to evike weather I get my money back or they can throw away. For twice the price you can get one that works else where.

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