Check my logic please

  • I'm 99 percent sure I'm right on this, I just need another person to check me on it.

    On an ar 15, the distance between the top edge of the grip (where the metal touches the plastic, also the front metal/plastic edge too) and the center of the safety selector will be the same regardless of manufacturer, to include the curves, radiuses and angles.

    This were not the case, one would need a proprietary grip and lower parts kit to make the lower functional, correct?

  • @ragnarnar
    Correct as long as within milspec.