Ets magazines are junk - Elite Tactical Systems Carbon Smoke CZ Scorpion Evo 3+, 9mm Luger, 40 Round Rifle Magazine

ETS Magazines are the absolute worst magazines I have ever used. Three AR Mags cracked and failed in less than 100 rounds each. Two Glock Mags also failed within 50 rounds. Contacted them for warranty and it would cost more to send them in for exchange than to replace them with a better brand. Into the trash they go.
I recommend NEVER buying any ETS magazines.