Q&A for CMMG Mk4 .300BLK 12.5in Banshee Upper Group Receiver

Q

Anthony, member, from PA, United States, asked on December 17, 2023

Do uppers have to be delivered to a FFL?

A

Answered by Westin Linville, member, from IN, United States, on April 11, 2025

Nope! It’s just lower receivers that have to be sent to FFLs

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Q

M H, guest, from VA, United States, asked on December 31, 2022

Will this work with a Standard AR15 lower?

Expert Answer

A

Answered by Ethan, Gear Expert, from IL, United States, on January 17, 2023

Yes, the CMMG Mk4 .300BLK 12.5in Banshee Upper Group Receiver will fit and function on Milspec AR15 lower receivers.

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Q

David Henley, member, from MO, United States, asked on December 13, 2024

How long is the handguard? I don't see that in the description.

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Q

Donald, member, from KS, United States, asked on December 06, 2024

What is the barrel steel

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Q

PMINT, member, from AL, United States, asked on August 01, 2024

Does this come with a BCG and charging handle?

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Q&A for CMMG Mk4 .300BLK 12.5in Banshee Upper Group Receiver — 5 Questions & 2 Answers

Do uppers have to be delivered to a FFL?

Will this work with a Standard AR15 lower?

How long is the handguard? I don't see that in the description.

What is the barrel steel

Does this come with a BCG and charging handle?