most striker fired pistols follow glock's lead in using not a manual thumb safety but instead a trigger safety, which prevents the trigger from being pulled by

most striker fired pistols follow glock's lead in using not a manual thumb safety but instead a trigger safety, which prevents the trigger from being pulled by something not shaped roughly like a finger the us military version of the p320 does have a thumb safety, and the claim is that they are going off without trigger pressure anyway, so who knows what the issue is