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this was covered on here a while ago.... basically, you can put a hammer forged DD chrome line (blah) onto a slightly modified 416 upper. currently it is the only way to get a hammer forged after-market barrel onto the platform.... I'm still un-decided on this particular modification...


that said, Marvin does phenomenal barrel work, I'm told.
 

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Discussion Starter #5
Just for a little project im working on, waiting on a quote from Marvin, but was wondering if anybody else did the work.
 

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Why stick an AR barrel on a MR556? Is it just for the chrome lining thing?
It could be a viable option if/when you burn out your MR556 barrel that would allow you to replace the barrel without searching for an HK416 or MR556 barrel, and you would also be able to have more choice in terms of the barrel profile you want, rather than having to be "stuck" with an HK416 barrel, or cut and/or re-profile an MR556 barrel if such things are of concern.

This could potentially be less of an issue when the promised replacement barrels become more available in different lengths/profiles, but for now, it seems like a good option to me.

~Augee
 

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You're not limited to a DD hammer forged barrel.

The only barrel Daniel Defense makes that can be used is the rifle length 18" S2W barrel.

You can use any barrel as long as the area under the hand guards is larger than 0.75" and that it has a rifle length gas system. The longest finished length is about 13" because of the gas port on the barrel.

Of course if could make your own barrel without a gas port, but it would be costly. Even the retrofit with an AR barrel is costly.


It would be just as easily and slightly cheaper to buy the HK Parts barrels

Essentially what he is doing, is taking a rifle AR barrel, drilling a new gas port, reprofiling the barrel and threading it. It would also entail cutting back the receiver threads on the upper and checking headspace. There might be some additional steps as well, such as a spacer for the barrel nut.

IIRC, he can, or is working on retrofitting the HK piston system on AR15 rifles.
 

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this was covered on here a while ago.... basically, you can put a hammer forged DD chrome line (blah) onto a slightly modified 416 upper. currently it is the only way to get a hammer forged after-market barrel onto the platform.... I'm still un-decided on this particular modification...


that said, Marvin does phenomenal barrel work, I'm told.
So can you provide a link to the discussion? I'm interested in a chrome lined barrel installation.

Scott
 

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So can you provide a link to the discussion? I'm interested in a chrome lined barrel installation.

Scott
I've spent about an hour looking through old threads.... I can't find the one I was referring to. I bet if you went to Nepharious Arms Facebook the info is there.

sorry I couldn't find the exact link, that said I know I read it on here..

good luck.
 

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I've spent about an hour looking through old threads.... I can't find the one I was referring to. I bet if you went to Nepharious Arms Facebook the info is there.

sorry I couldn't find the exact link, that said I know I read it on here..

good luck.
Oh well, I don't have a Facebook account.

Scott
 
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