This is also better in that it takes .308 PMags.
This is, actually, a very graphic illustration of how SLOW KT is. When they designed the RFB, SR-25 magazines were rare and expensive, and FAL mags were a dime a dozen. Designing the RFB around metric FAL mags was deemed to be a very wise decision. In the interim, a company that actually MAKES STUFF designed and fielded a magazine that is cheap and reliable for the AR-10 pattern guns, and FAL mags, probably the most plentiful surplus mags n the world that don't feed a Stoner or Kalashnikov design, have dried up.
Read that again: while the world waited for KT to get off their arses and produce a gun that they had already designed, the magazine market did a complete 180, with design and production of a whole new magazine happening and an entire, worldwide supply going from "plentiful and cheap" to "scarce and expensive."
Utter fail, KT. Utter, abject fail. You may be design geniuses, but you're business morons. The lot of you.