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Q&A for Daniel Defense MK18, URG, 10.3in 5.56 Complete Upper Receiver w/ Flash Hider — 22 Questions & 19 Answers

Name Daniel Defense MK18, URG, 10.3in 5.56 Complete Upper Receiver w/ Flash Hider (4.9)
$1,517.00 $1,412.00 Save $105.00
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Q
YellowDevil93, member, from AZ, United States, asked on December 14, 2020

Is the flash-hider pinned and welded?

Expert Answer
A
Answered by Brandon B, Gear Expert, from IL, United States, on July 28, 2021

GAS SYSTEM: Pinned Low Profile Gas Block CNC Machined of 4140 hardened steel with Mil-Spec Heavy Phosphate Coating, Carbine Length, Direct Impingement

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Q
TEDNA1, member, from CT, United States, asked on January 11, 2023

What length handguard is the rail?

Expert Answer
A
Answered by Ethan, Gear Expert, from IL, United States, on February 27, 2023

The Daniel Defense MK18, URG, 10.3in 5.56 Complete Upper Receiver features the NK18 Rail Interface System II, RIS II, which measures 9.55" in length.

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Q
Bill, guest, from NM, United States, asked on December 29, 2022

I just ordered this upper assembly. My question is the item I ordered be as the item pictured? Black receiver with FDE hand guard?

Expert Answer
A
Answered by Hunter, Gear Expert, from OH, United States, on January 19, 2023

Yes, the available model of the Daniel Defense MK18, URG, 10.3in 5.56 Complete Upper Receiver has an FDE handguard and a Black receiver.

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Q
TEDNA1, member, from CT, United States, asked on October 26, 2021

What is the overall length of the barrel with the flash hider attached? Thanks

Expert Answer
A
Answered by Todd, Gear Expert, from IL, United States, on November 17, 2021

Somewhere around 11.3in.

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Q
zevon, guest, from CO, United States, asked on October 07, 2021

Is there a preferred buffer/buffer spring combo to use for these short barrels?

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A
Answered by Todd, Gear Expert, from IL, United States, on November 17, 2021

Email us at techsales@opticsplanet.com

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Q
dumbquestion, member, from OH, United States, asked on September 29, 2021

Can this shoot .223?

Expert Answer
A
Answered by Jeremy, Gear Expert, from IL, United States, on October 21, 2021

Yes it can.

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Q
Ky, guest, from TN, United States, asked on September 11, 2021

What side of gas block? Is this .070 side?

Expert Answer
A
Answered by Todd, Gear Expert, from IL, United States, on November 17, 2021

Milspec standard diameter of 0.750".

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Q
Austin T, member, from OK, United States, asked on August 27, 2021

Does this upper come with a heavy profile barrel or a government profile barrel?

Expert Answer
A
Answered by Jeremy, Gear Expert, from IL, United States, on October 21, 2021

Government profile barrel.

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Q
Joel, guest, from AZ, United States, asked on August 26, 2021

I have a ddm4 pdw with pistol brace. Is it ok to swap the upper receiver with this one?

Expert Answer
A
Answered by Armando R., Gear Expert, from IL, United States, on September 01, 2021

You will need to confirm that you are following all laws and regulations that apply to your city/state. I would recommend contacting your local BATFE office to confirm.

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Q
John, member, from WA, United States, asked on November 09, 2020

Is the gas block a true Daniel Defense gas block that’s adjustable?

Expert Answer
A
Answered by Brandon B, Gear Expert, from IL, United States, on July 29, 2021

Hello, this MK18 upper comes with a standard low profile pinned on gas block that is NOT adjustable.

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