Stainless w/brake 11" for $210.
https://sotaarms.com/joomshopping/product/view/2/483
BC & CH included. I can speak from experience - this barrel length + brake = BRUTAL.
MagPhos w/o brake for an even $200.
https://sotaarms.com/joomshopping/product/view/2/478
I've had two or three of 'em but don't run 'em much. When they run they run great, I just haven't put thousands of rounds through them. @NWS did a thread on them WAY back in the day on another site.
I'm all about the pistol caliber carbines but it's going to have to be a whole lot cheaper for me to play.
I think they were smart to copy the Bren mags. When I first saw the gas tube I had fingers crossed it was gas operated but no love.