UNIMAG by Ross Defense Systems

[Shooterrex]

Bought 2 of these to try. Works well in 223 and the Grendel. I only tried 1full magazine of each caliber today due to time. They hold 24 rounds of Grendel. I will update as far as 7.62x39 and I think it will work for my 50 Beowulf.
https://shop.tacticalshit.com/unimag-mul...r-magazine
I have a hard time posting pics from my phone. I will update this as I use them more.
Supposed to work with 223/556, 300blackout,224valkyrie, Grendel, 6.8spc, 7.62x39, 545x39, 458 socom

[Double Naught Spy]

I have a Unimag. I has caused problems for me in every range session I have used it in my Grendel. The most common are failures to feed. Also, the top round sometimes ends up at a diagonal from where it should be (which may be when the failure to feed occurs?).