Author Topic: Help Needed: Custom Armalite 10T Barrel Nut w/ DPMS Threading  (Read 2135 times)

Offline NateP

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Help Needed: Custom Armalite 10T Barrel Nut w/ DPMS Threading
« on: February 22, 2015, 03:21:58 PM »
Hi All,

I'm working on mating my MEGA MATEN DPMS upper with the Armalite SASS Hand guards/Switchable Gas kit.

This is the barrel nut in factory form:  http://www.armalite.com/ItemForm.aspx?item=EA1146&Category=453cc863-195b-457d-9754-b6b0673837cb

This is the Rail/Gas block / hand guard kit that slips over it:  http://www.armalite.com/ItemForm.aspx?item=10109600KIT&ReturnUrl=Categories.aspx?Category=40349ae1-169f-4373-9e49-8b550aadc53b

I drew up the AR10T barrel nut and am looking for guidance on the following:
a.)what machine/tooling do I need to look for that can make this?
b.)thread relief on 1-7/16x16 2B - how deep and long should it be?  I used one rotation in depth (.0625) and a diameter roughly .060 larger then the major diameter of the threading.
c.)is there anyone here that can make this?


Thanks a bunch!

Offline NateP

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Re: Help Needed: Custom Armalite 10T Barrel Nut w/ DPMS Threading
« Reply #1 on: February 22, 2015, 03:44:56 PM »

Offline NateP

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Re: Help Needed: Custom Armalite 10T Barrel Nut w/ DPMS Threading
« Reply #2 on: February 22, 2015, 03:57:12 PM »
Attaching IGS file: note internal threads (1-7/16 x 16TPI, 2B) were cut using the max major diameter using specs from efunda.com.  I used a 35mm "Drill" diameter for threads.  Those were slightly unknown using internet numbers.