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Q&A for Daniel Defense Assy 5.56mm NATO Threaded Barrel — 27 Questions & 33 Answers

Name Daniel Defense Assy 5.56mm NATO Threaded Barrel (4.7)
As Low As $348.00 Save Up to $31.00
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Q
Frank, member, from CA, United States, asked on December 20, 2018

Does this DD 10.3 barrel have the .070 gas port diameter size?

Expert Answer
A
Answered by Ethan C., Gear Expert, from IL, United States, on May 23, 2019

The 10.3" barrel has a .750 gas block journal.

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Q
Jeffro, member, from GA, United States, asked on March 05, 2020

What is the gas port diameter on the 11.5" barrel?

Expert Answer
A
Answered by Armando R., Gear Expert, from IL, United States, on March 26, 2020

Gas block diameter on these barrels is .750.

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Q
Kristian, member, from TX, United States, asked on February 08, 2024

Do these come with a delta ring barrel nut?

A
Answered by mune, member, from NE, United States, on September 01, 2025

Barrel nuts will come with the handguard

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Q
Erik, member, from NH, United States, asked on April 13, 2023

Are the gas blocks pinned?

Expert Answer
A
Answered by Ethan, Gear Expert, from IL, United States, on April 18, 2023

The Daniel Defense Assy 5.56mm NATO Threaded Barrel does not have a pinned gas block on the barrel models that include a low-profile gas block.

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Q
H93, member, from VA, United States, asked on May 23, 2020

Are the barrels sold without a gas block dimpled?

Expert Answer
A
Answered by Ryan Tarczynski, Gear Expert, from IL, United States, on December 07, 2020

No they are not only the Mk 8 and Mk 12 have the gas block dimpled on them.

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Q
John Costiloe, member, from OK, United States, asked on February 18, 2019

Are these gas blocks installed? If so are they pinned?

Expert Answer
A
Answered by Ethan C., Gear Expert, from IL, United States, on May 23, 2019

The ones versions that come with the gas block have the gas block pre-installed. They are secured via set screws.

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Q
johnlaw1911, member, from TN, United States, asked on May 14, 2026

Does this come with a barrel nut?

A
Answered by Ryan, member, from NC, United States, on May 14, 2026

No, standalone Daniel Defense rifle barrel assemblies are sold without the barrel nut included.

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Q
Raul Lopez, member, from TX, United States, asked on March 27, 2025

What is the size of the gas port on the 10.3 barrel? I’m not asking for the diameter for the gas block journal

A
Answered by Nicolas jr Jumapao, member, from cebu, Philippines, on October 30, 2025

Gas port size is .069

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Q
Rob, member, from TX, United States, asked on March 11, 2025

is the stripped version dimpled so I can put any gas block on there?

A
Answered by Ryan, member, from NC, United States, on May 14, 2026

DD does not offer stripped barrels dimpled for aftermarket adjustable gas blocks. Their barrels are designed around their pinned gas block system to maintain consistent alignment and long-term performance.

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Q
Jonathan, guest, from WA, United States, asked on November 05, 2022

Does the 11.5” barrel use both 223 and 556 ammo?

Expert Answer
A
Answered by Hunter, Gear Expert, from OH, United States, on November 08, 2022

Yes, all these Daniel Defense Rifle Barrel Assembly, 5.56mm NATO will fire .223 Remington and 5.56 NATO.

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Last updated 2025-11-12 UTC.