Carolyn "shoulder thingy that goes up, heat seaking bullets" McCarthy? Why would you consider it a win for gun control, her position hasn't changed since she was first elected.
The House is controlled by the R's who will not let any new gun control laws pass, the Senate is led by Dem. Harry Reid who is a strong proponent of the RKBA and he won't let any gun control laws come up for a vote.
Bottom line is that there is no gain for the controller.