Seems that A&K's version was just licensed by PTS as the "Magpul PTS Masada Sportline" to complete their own, more recent and sophisticated, Magpul PTS ACR.
This info has been published
after reports from the A&K offices been raided, which are indeed conflicting, so...
The guy on Arnies who gave the info, later somehow confirmed by Paul over at EBB seems to think the the CNC RAS and PRS (SPR) stock should be availble under license for A&K's Masada Sportline before christmas.
It has some flaws, notably the range OTTB, but it's overall a very nice gun