How quickly would House of Representatives vote on gun control if a bill passes the Senate?

With the narrow Republican majority in the House, it won't take many Republican switches to pass a gun control bill.

Republican leadership aides have cautioned against the expectation of quick House action, noting that the Senate has already been working on gun legislation for nearly four months. The House, an aide said, would expect to take at least as much time.
For gun-control advocates, the political atmosphere in the GOP-controlled House underscores the heavy lift even to expand background checks and crack down on gun trafficking and straw purchases,  . . .