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1 thought on “Mean Arms comes out with a roller-delayed AR upper”

  1. Interesting. I’ve seen comments before to the effect that simple-blowback 9mm AR-types have a pretty sharp recoil (not heavy, but fairly violent), and can be hard on some components.
    Maybe this is them trying to make it possible to use slightly lighter bolts and buffers, also at a slightly lower cycle velocity?

    I have no idea, just spitballing. Never actually shot a 9mm AR, but I did get to try a buddy’s HK94 once, and it was pretty sweet.

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