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Q&A for Rosco Manufacturing 5.56/.300 BLK Bolt Carrier Group (BCG) — 2 Questions & 6 Answers

Name Rosco Manufacturing 5.56/.300 BLK Bolt Carrier Group (BCG) (4.9)
$140.00 $139.99
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Q
Ithaca, member, from UT, United States, asked on August 07, 2024

Can I shoot 300 BLK through a 556 barrel?

Manufacturer Answer
A
Answered by Rosco Customer Service, Manufacturer from RI, United States, on April 17, 2025

NO, that would be extremely dangerous.
All barrels are marked for their specific caliber.

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Q
Ithaca, member, from UT, United States, asked on August 07, 2024

Can I shoot 223 using this bcg?

Expert Answer
A
Answered by Ethan, Gear Expert, from IL, United States, on August 07, 2024

Yes, the Rosco Manufacturing 5.56/.300 BLK Bolt Carrier Group can be used with .223, 5.56, and 300 Blackout.

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