** Your NEA102 build **

[tharkhold]

Oh and the weight of my rifle without a Mag was 8.8 lbs

Mine sits at 8.1lbs with the handguard change. (No mag, no scope)

I think I should have stripped it completely and weigh all the separate parts before modding it.. now im too lazy to to that!

I did the BCG though, and remember it was in the order of 548g or so.

 

[tharkhold]

Well I tested my BCG with a buddy that just came over...

The bolt goes into the BCG on its own weight....

If I pull out the bolt and set it on the table , the BCG will drop. Not good.

Hey, when i pull the bolt out of mine, and put it on a table bolt facing up, the bolt stays up. If I put it like dilligaf's in post 1508, it sometimes goes down halfway, sometimes stays up and other times down completely...

What should it do?? Not move at all?

 

[DiabeticKripple]

Hey, when i pull the bolt out of mine, and put it on a table bolt facing up, the bolt stays up. If I put it like dilligaf's in post 1508, it sometimes goes down halfway, sometimes stays up and other times down completely...

What should it do?? Not move at all?

It shouldn’t move at all. Mine goes all the way down all the time.

But Ryan said that since this isn’t a typical AR10/AR15 that we really shouldn’t worry about it until we actually shoot these rifles. The bolt carrier is pretty beefy.

 

[tharkhold]

It shouldn’t move at all. Mine goes all the way down all the time.

But Ryan said that since this isn’t a typical AR10/AR15 that we really shouldn’t worry about it until we actually shoot these rifles. The bolt carrier is pretty beefy.

aw ok, thanks

 

[mikethebike]

Already have the gas block in the mail.

I wonder how many rounds they put through it at the factory.

what did you order?

 

[mikethebike]

bcg weight should never move the bolt, the seal of the bolt with the carrier needs to be tight

 

[DiabeticKripple]

what did you order?

SLR 0.875” clamp on adjustable in black

 

[DILLIGAF]

bcg weight should never move the bolt, the seal of the bolt with the carrier needs to be tight

Some people reported the 102 to be overgassed thats why I got a adjustable gas block on the way So maybee the overgassing was to compensate for looser tolerances on the bolt...

But as long as the bolt locks in place I dont think there's any issues.

One thing you might also want to try is https://www.wolverinesupplies.com/productdetail/amlea1055_armalite-ar10-mcfarland-gas-ring

Just searched Armalites FAQs and According to Armalite it is fine for this to happen. The AR10 can have more slop due to the bigger volume of gas. The AR15 "stand the BCG on end/ see if the bolt moves" does not apply to the AR10. Armalite has even said it will run without them. So I just learned something new today, But I still prefer tight over loose even for bolts.

So now once I adjust my gas setting to my Brownells bolt I wonder if the original will work . Cant wait to try it out.

 

[mikethebike]

SLR 0.875” clamp on adjustable in black

i guess its worth the 200 cad

 

[DiabeticKripple]

i guess its worth the 200 cad

$145 shipped.

 

[CODFan]

Finished the barrel swap.

New Rifle Length Gas System. Interesting how much further the Gas tube protrudes into the Upper Receiver with the new parts.

Old Parts ....

New Parts ...

 

[SSG69]

The length of that gas tube looks right, comparing it to an AR-10. It should seat better into the gas key.

Which barrel are you going with there?

 

[CODFan]

Which barrel are you going with there?

Fulton Armory .308 lightweight 18.5” Armalite rifle length gas system .750 gas block Chrome lined

 

[Leg]

So these genius’ aren’t even using the longer gas tube required for a 308 AR?

 

[SSG69]

Nope, I commented on that on one of the other posts a long time ago. I also contacted BCL to ask and all I got was............

Looking at time tested and proven models, I still think BCL has a lot of refinement to do, and should have done before pumping them out the door.

 

[CODFan]

Note: Armalite pattern rifle length gas tube is 15-1/2" long

 

[tharkhold]

Fulton Armory .308 lightweight 18.5” Armalite rifle length gas system .750 gas block Chrome lined

dont forget to weigh the sucker when installed and post it I'm also looking to lighten my 102 by 1-2lbs

 

[CODFan]

dont forget to weigh the sucker when installed and post it I'm also looking to lighten my 102 by 1-2lbs

The barrel drops 1lbs of weight. My current base build is just over 7lbs.

Dropping any more weight will get silly expensive.

 

[tharkhold]

The barrel drops 1lbs of weight. My current base build is just over 7lbs.

Dropping any more weight will get silly expensive.

Challenge Accepted!

 

[DILLIGAF]

As long as I can get mine to 8 lbs with scope and loaded i'll be happy. That Faxon barrel looks nice tho!