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Hello,Is the bolt carrier with the SIG 516 Gen 2 10" upper Full aotu or Semi auto profile?

Steve Thomas

Referenced product: UA516G2-10

Sig's 516 uppers have a semi-auto only bolt carrier group unless the part number contains MGA. The referenced product is a semi-auto only BCG. The UA516G2-10MGA ships with a full auto capable bolt carrier group. The lower receiver must be a full auto receiver for the firearm to function as a full auto with the UA516G2-10MGA.

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