Doesn't cycle properly - Elite Tactical Systems Carbon Smoke Series Glock 20/29/40 10mm 30 Round Pistol Magazine

This doesn't cycle in a 10 mm PCC, because I think there's something off about the spring or how the cartridges fit inside. Rounds seem to "catch" and doesn't advance smoothly. Round would jam in the gun. Useless, and can't be used in defensive purposes. I already threw outthe packaging so I can't return.