I got the handguards in from New Zealand (that were discussed in the BRN-10 update thread), and I think they look great.  He sent them with a customs declaration of what they are, and their true value.  Customs let them right through, and there was no import duty. They are the EXACT length and outside dimensions of an original.  They do not have the holes drilled in them, and they do not have internal heat shields. I will post more photos when I correct that, and send them off to John Thomas for proper painting.  I purchased the last two he had - one for each of my back ordered BRN-10's ($355 for the pair with shipping).  One of the great things about using these, is that no front cap, and no handguard lock ring is required.  I asked him to let me know when he has more in stock, and I asked about a possible group purchase. I will let you know when he replies to my questions. Below are photos of the two and their package, and one next to an original.

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This is going to be huge.

Maybe not Space Force huge.

I am really looking forward to seeing these completed.

Looks great ! Let us know if they fit a modern ar10

If for some reason they don't fit a modern AR10, they will definately fit prototype AR15 builds, as I have already test fit them to one.

They look great. Any concerns about the lack of heat shields?

My opinion is that they are for display or very light use.
I bought one these HGs a few years ago when they were first available (at a higher price).  It was quickly passed along/

I have already figured out how to install heat shields in these two samples, and I am working with the manufacturer to see if he can install them during production, or send them unassembled to make it easier for me to install heat shields if he can't/won't do it.  I think the heat shields are important for .308 but probably not so important for .223 (how many people have built prototype AR15 clones using NDS hand guards with no heat shields, and I have not heard of anyone having problems). He said that he is about two months out on more production.

WOW !! What a find.

Before he puts the ends on, install and epoxy in a thin aluminum tube wrapped in ceramic tape.  I can't see why he wouldn't do this.  Of course it's gonna drive the price up as well.

This reminds me of an idea I had for the Brownells handguards when the BRN-10 drops. I believe they already said they would not have heat shields and that is one thing that doesn't quite sit well with me. My idea makes use of some stuff that my Dad got to make miniature corrugated tin roofs for model buildings back when we went to train shows more than gun shows (one ended up overshadowing the other ). The idea is to make corrugated aluminum heat shields from aluminum soda cans using this thing he got from a craft store that was originally intended for corrugating paper, but it never seemed to notice that aluminum cans aren't made of paper. My biggest two unknowns are where the tool is (it's been about 15 years since we last used it) and how to secure the heat shields in the handguard. I think the second will have to wait till I see the actual handguards in person, but I'm hoping there might be internal strengthening ribs that might make decent anchor points, if not, I'll likely figure something out.

As one that has used the old NDS handguards on prototypes, these look great! On a two piece set I used A2 heat shields and re-drilled them to match the prototype holes. On a set that was bonded and filled into a one piece, I did not use any heat shields.