[Justus]

I've heard good and bad about Model One.
Just like any other brand, there's a few reports of problems.

Based on my own experience with 3 of their uppers and parts kits,
over a 8 year span of time,
I would recommend them, I've never had any trouble.
They're at the Indy 1500 every time, so you can see the exact items
and inspect them before you purchase.
That being said, prices are getting very competitive these days,
Model One isn't the bargain that it was during the ban.

I've always been leary of "wierd" combinations like this.
Over time, you can end up with an expensive paperweight due to lack of parts.
The 7.62 AR parts may be available now, but 10 years down the
road they may not be.