Anyone knows anything about Ferfrans?

Their AR products seems to be quite popular in the asia but as far as i know they're a company based in the US with a service only focused branch in the phillipines, tho I'm not sure if the one in the phillipines also handles the manufacturing and production.
I saw some images of their IAR clone but i can't seems to gather anything about it. it has a noticable ambidextrous lower and long freefloat handguard with "modular handguard system" written on it. Interestingly i don't find any relevant information when i try to find anything using those keywords.

The main appeal is they have a rate reducing bolt carrier that makes full auto more controllable:

https://www.ar15.com/forums/armory/Ferfrans-Bolt-Carrier/23-493014/

https://www.defensereview.com/ferfrans-rate-reduction-system-rrs-and-special-weapons-for-tactical-operators/

https://patents.google.com/patent/US8001881B2/en 

Here's the rare reducing bcg patent.

And here's what it looks like.

Thanks both roguetech and gatnerd, i read about the rate reducing bolt but haven't seen the patent yet

What about the rifle i described? With the ambidextrous lower receiver and a long handguard with "modular handguard system" written on it? You guys knows anything?

I've the picture of it if anyone is interested. I think it was used by Indonesian army.