I am not a big fan of extended magazine release buttons, even the slightly lengthened ones from Brown, McCormick, Wilson, etc.
I feel it is too easy to put pressure on the release from say, hip movement, rolling in a seat, what have you, and inadvertantly release the magazine.
I prefer a standard button and standard spring. This combination has seemed to offer the best compromise between fast magazine release and inadvertant magazine release for almost 100 years now so I will stick with the proven standard.
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