Newbie here I just ordered some spare mags 3/28/2024 at 4:00PM Eastern time from Midway USA There $52 plus tax and shipping. They are much more expensive on the auction sights. I am not selling just wanted everyone to know. The 7.62x39 mags are stock out but I believe they interchange with the Grendel. These are 5 round magazines for the CZ 527 6.5 Grendel.