-M16 full auto profile

-Tough and lubricious Nitride finish

-8620 Steel carrier Nitrided

-4130 Steel gas key Nitrided

-Gas key staked to mil spec requirements

-Carpenter 158 Bolt

-Black extractor insert

-Mil-Spec Crane 0-Ring

-Mil-Spec extractor spring

MADE IN THE USA

UPC
MFG Thoroughbred Armament Company LLC
MODEL BCG C158 Nitride
TITLE Thoroughbred Armament Company BCG C158 Nitrided

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