Aluminum Magazine Extension (+5) for FN Five-seveN USG/MK2
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- FN Five-seveNManufacturer documented+5 on the USG/MK2 20-round magazine (25+1). Draft onto catalogue FN Five-seveN (non-MRD / MK2-class). Distinct USG-only gun row is not invented when absent; maker names both USG and MK2.
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