Actually it is the position of the UMC. They are the ones that began Coalition to Stop Gun Violence and calling on Congress to ban private gun ownership. I assure you the UMC is against guns and all their pastorial leaders has to take the stand of the Church.
Please fully read the following links:
Gun Violence
Gun Control
Coalition to Stop Gun Violence - Wikipedia, the free encyclopedia
To quote wikipedia: In 1974, the United Methodist General Board of Church and Society formed the National Coalition to Ban Handguns,[1] a group of thirty religious, labor, and nonprofit organizations with the goal of addressing "the high rates of gun-related crime and death in American society" by licensing gun owners, registering firearms, and banning private ownership of handguns with "reasonable limited exceptions" for "police, military, licensed security guards, antique dealers who have guns in unfireable condition, and licensed pistol clubs where firearms are kept on the premises."[2][3] In the 1980s and 1990s, the coalition grew to 44 member groups.[4] In 1989, the National Coalition to Ban Handguns changed its name to the Coalition to Stop Gun Violence, in part because the group felt that "assault rifles" as well as handguns, should be outlawed.[5] Today, the coalition comprises 48 member organization.
So it is the position of the UMC and they say they speak for their 11 million members.