NEA muzzle device questions

[IBM]

I got an NEA complete upper which comes with the brake shown below. I tried googling for info as well as emailing NEA but I haven't been able to find out the following info:

1) what are the specs on this outer thread? (as you can see my measuring devices at hand are not highly accurate)

2) what's it for?

Thanks if anyone can help.

 

[twoguntim]

What's with the finish? Sort of half blued...

 

[Duff350]

maybe for a can... (ready for silencer....) ?!?!

 

[EDF339]

i'm pretty sure its for silencer ready muzzle device since NEA support LEO/Military

maybe for a can... (ready for silencer....) ?!?!

 

[Suputin]

The outer thread was originally meant for a QD silencer mount, however that mount has been abandoned.

 

[jdman]

Edited by Chemist

Jdman, please don't act like that in my forums.

 

[Suputin]

What's with the finish? Sort of half blued...

These were not blued. Every one I have seen was a uniform greyish colour. The discolouration would likely be from use.

 

[Chemist]

These were not blued. Every one I have seen was a uniform greyish colour. The discolouration would likely be from use.

Up until they tweaked the finishing process lately, that's what the treated parts have looked like for the last year. It's not a defect, it's how the treatment process made them look.

Ryan

 

[Trinimon]

Is that the ARC+ finish? It still would be cool to attach a dummy can to it.

 

[IBM]

the finish was light grey like the threads. I did a quick cold blue on it and it discoloured from use. Needs another coat.

So what I'm gathering is that the big outer threads are for a QD supressor mount that wasn't adopted for use... I still would love to get some technical specs on the thread size and any other details.

Thanks for the helpful feedback.

 

[badboybeeson]

the finish was light grey like the threads. I did a quick cold blue on it and it discoloured from use. Needs another coat.

So what I'm gathering is that the big outer threads are for a QD supressor mount that wasn't adopted for use... I still would love to get some technical specs on the thread size and any other details.

Thanks for the helpful feedback.

you cant cold blue over nitrideing, that like painting over chrome and painting over glass
nothing is going to stick to is
bbb

 

[IBM]

Sorry, I must have been too vague asking about the specs on the threads. What I mean is that I'm looking to find out the angle, depth, distance between threads - the physical dimensions. Are those available anywhere? Who should I ask to find out?

you cant cold blue over nitrideing, that like painting over chrome and painting over glass
nothing is going to stick to is
bbb

 

[icabod123]

Have you tried sending nea an email?

Sorry, I must have been too vague asking about the specs on the threads. What I mean is that I'm looking to find out the angle, depth, distance between threads - the physical dimensions. Are those available anywhere? Who should I ask to find out?

 

[IBM]

Have you tried sending nea an email?

yup.

 

[Ccook]

Vortex flash suppressor.. With external threads for can.

 

[Goosetaf]

As per email from Johann at NEA I received back in August of 2015.

1-1/4 - 7 UNC Left hand thread
Pitch Dia: 1.1572"