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| RU-AR | 16" Free Float Rail Mil-Spec Complete Upper. 223/5.56, 16" Free Float Rail Mil-Spec Complete Upper. 300BLK, 16" Free Float Rail Mil-Spec Complete Upper. 7.62×39, 7.5" Free Float Rail Mil-Spec Complete Upper. 223/5.56, 7.5" Free Float Rail Mil-Spec Complete Upper. 300BLK, 7.5" Free Float Rail Mil-Spec Complete Upper. 7.62×39 |
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