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armalite gas system with dpms bolt


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I am thinking about having a barrel custom turned and was wanting to use a .875 gas block but the only guns I have seen run the .875 gas blocks are Armalite. I am using a DPMS style bolt and was wondering if it would function properly with a Armalite style gas system on the barrel. Anybody have any answers?

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What gas length set up, is up to you & if GA said mid , they know more about it than I do .

The normal gas system for a 20" bbl. is a rifle length . Now when you go to a 18" the mid length would be more in line  & as you go to a 16" the carbine gas system is the norm .

I have a 20" & a 16" & both have a rifle length gas system  & work fine .

Its up to you.

You will find that if you go with a different set up than whats normal , you may need to tweak things . Like a different Buffer or its spring ,lighter/heavier bolt Carrier group & so forth.

Hell ,some times you have to tweak it any way.

If they are building it ,than that's there responsibility to get the rifle to operate properly.

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If it's an Armalite gas system that you'll run, it'll be designed on an Armalite-type barrel probably.  Armalite-type barrels will probably have Armalite barrel extensions on them.  Don't mix that type barrel extension with a DPMS bolt.  My $0.02 there.

If you can contact you're you're having build your barrel, and have them (definitely) use a DPMS barrel extension for the build, then you'd have no troubles at all running a DPMS bolt with it.

I'd send them the bolt you plan on using before they build your barrel - then can test headspace with your specific bolt before the barrel ever ships out to you.  <thumbsup>

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