AR 10 in the Dominican.

[browningautorifle]

It's surprising that the AR10 rifle wasn't used more widely,

You can see how it was dropped from considerations when the original sales pitch came and the two rifles, one .223 and one 7.62 travelled the world. After a while they gave the 7.62 ammo away as no one wanted to shoot it. Just the little one.

It's all in the book. Too, the FN and AR10 aren't even close to the same.