这个模型来自于Miralyn（https://hub.sp-tarkov.com/files/file/1357-m16a4-by-miralyn/?highlight=M16A4），模型比例已经统一。以泽宁特B13V导轨上的皮卡汀尼导轨宽度为21.2毫米为标准，确定所有模型尺寸。
This model is from Miralyn（https://hub.sp-tarkov.com/files/file/1357-m16a4-by-miralyn/?highlight=M16A4）, and the model scale has been unified. All model dimensions are based on a Picatinny rail width of 21.2 mm on a Zenit B13V rail.
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