I think you have an ammunition problem from the sound of it. Get a box if "good" ammo from Walmart (Remington/Winchester etc) or other source and try it. It seems not to be the magazines due to the fact you have tried three of them. If there is no drag when you pull it back by hand and let it go loading a round. Probably weal ammunition that is failing to cycle the weapon. If that doesn't work and the rifle is new send it back.
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