Me and a few friends were out shooting at the range today and my friend was shooting my sigma 40VE when the slide just locked back after it fired. I can not get the slide to come forward at all now. The slide lock is free and not holding it. I cant see anything holding the slide but I will not go forward. I am going to ship it back the S&W but do yall have any idea what might be holding it? I can drop the mag and the trigger pulls still so none of that is binding it up. Thanks for any help. The bad thing is that friend was gonna buy it from me once I get a new gun to replace it. Now he's not to sure about the deal.