Acronyms, Abbreviations, and Initialisms.
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The meaning of the Acronym 503 RCT is...

503 RCT is

  • 503rd Regimental Combat Team

503 RCT is also in:

Acronym Definition Searched: CRN RVST MVP E476 PM 07514 VRT IP&E FOT ILYE ARK OE TK ACCME UND