Bad magazine - FAB Defense Ultimag AR-15 .223 Remington/5.56x45mm NATO 10 Round Pistol Magazine

You sold me the bad magazines, you know? The two magazines I bought did not work. When shooting, the bullets could not advance normally and would get stuck in the chamber of the gun, which was very dangerous and caused considerable damage to my gun. I switched to several other companies and the magazines worked perfectly. You are risking the lives of your customers.