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Defend the weak.  Fight for what you love. May the wings of liberty never lose a feather

DEGuns

CMMG 57DF1C7 PS90 SBR 5.7x28mm 10.4 4140 Chrome Moly Steel Black Phosphate

CMMG 57DF1C7 PS90 SBR 5.7x28mm 10.4 4140 Chrome Moly Steel Black Phosphate

CMMG's PS90 SBR threaded barrel is constructed of 4150 chrome moly vanadium with chrome lining and a maganese phosphate coating. It is 10.4 long and is chambered for FN 5.7x28mm caliber.

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