Q&A for Rosco Manufacturing Bloodline 5.56 NATO Mid Length Barrel

Rosco Manufacturing Bloodline 5.56 NATO Mid Length Barrel

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yiddy, member, from NJ, United States, asked on February 02, 2024

is this barrel dimpled?

Manufacturer Answer

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

Yes, all Rosco barrels are dimpled for proper gas block alignment and ease of installation.

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Darryl, member, from AL, United States, asked on May 23, 2019

Is the gas port pinned?

Expert Answer

Answered by Mark H., Gear Expert, from IL, United States, on September 24, 2019

Unfortunately, Rosco Manufacturing does not list that specification.

You can reach Roscoe at 401-228-0120, or by email at sales@roscomanufacturing.com

Mark H.

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David Le, member, from NV, United States, asked on September 12, 2026

I can use a adjustable gas block for the barrel instead using the non adjustable gas block that comes with the bloodline kit

AI Answer

Answered by OpticsPlanet AI, on September 12, 2026

Yes, since this barrel has a standard .750 in gas block journal, you can use any properly sized .750 adjustable gas block on it instead of a fixed one.

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Thegiven, member, from IN, United States, asked on May 27, 2026

Does this barrel come with the gas tube?

Manufacturer Answer

Answered by Rosco Customer Service, Manufacturer from RI, United States, on June 03, 2026

No, Bloodline barrels do not include a gas tube.
Gas Tubes are supplied with all K9 Series barrels and the Husky 12.5" which also uses the proprietary Patrol Length gas system.

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Thegiven, member, from IN, United States, asked on May 26, 2026

what gas block is everyone using on these barrels?

Manufacturer Answer

Answered by Rosco Customer Service, Manufacturer from RI, United States, on June 03, 2026

Rosco manufactures a low-profile gas block made to work seamlessly but any quality .750 gas block will fit.

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Matthew Marko, member, from PA, United States, asked on August 12, 2021

So Im a little new to building AR’s and was just curious if this requires a .750 gas block and how that information can be obtained?

Expert Answer

Answered by Tom B, Gear Expert, from IL, United States, on September 02, 2021

Yes, this barrel uses a .750 gas block. Usually, that information is in our product description.

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Yu, member, from VA, United States, asked on January 13, 2021

Will this work for a carbine length gas system?

Expert Answer

Answered by Brandon B, Gear Expert, from IL, United States, on July 27, 2021

No. This item is a mid length gas system.

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Kenny, member, from NC, United States, asked on August 27, 2020

Is this barrel 16in in length from the closed bolt?

Expert Answer

Answered by Hunter, Gear Expert, from OH, United States, on January 26, 2022

Yes, the Rosco Manufacturing Bloodline 5.56 NATO Mid Length Barrel 16inch is measured from the closed bolt.

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Luis Miranda, member, from CA, United States, asked on June 27, 2020

Is the gas length a carbine length?

Expert Answer

Answered by Brandon B, Gear Expert, from IL, United States, on July 27, 2021

No. 14.5” and 16” in this series are both mid-length gas systems.

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Paxton, member, from TX, United States, asked on May 06, 2020

what length gas tube would go best with this barrel? carbine or mid-length?

Answered by KyleG, member, from LA, United States, on April 19, 2021

The only length that will work is mid-length.

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Q&A for Rosco Manufacturing Bloodline 5.56 NATO Mid Length Barrel — 12 Questions & 14 Answers