Magazine Stuck in G&P M870 Maddog Shotty
 

So my mag wont come out at all it comes out only half way then there seems to be something catching onto the mag. it was working fine until i got home today and it just wont budge.

any ideas?

Your magazine nut is loose and got jammed in there so you will need to somehow wiggle it out, reload your mag spring into the mag and lock the nut.