How would you do a 6 arc from a 223? Would the factory mag still work?
Open bolt face ($100 at Kinport). My factory mag wasn’t reliable. @pods8 (Rugged Stitching) is working on 3d printed mags. Waters 223 mags have been perfect for me, but expensive. As above, you could drop it into a KRG bravo and use MDT AICS mags.