A campaign to highlight what it claims to be the United States' "antiquated" gun laws has been shared extensively online as the debate over gun control continues.
The 30-second video, produced by the States United To Prevent Gun Violence, uses dark humour to argue that the right to bear arms, first ratified by Congress more than two centuries ago, does not reflect the reality of modern day weapons.
In the video, a disgruntled man strides into a busy office space and shoots a man at point-blank rage.
He misses, and the camera angle changes to reveal that he is weilding an old-fashioned muzzle-loading firearm.
As the office workers flee in terror, the man busies himself loading the weapon with cartridge, powder and a scouring stick.
Text then appears on the screen stating: "Guns have changed. Shouldn't our gun laws?"
The video, first produced in 2013, has been shared extensively again in the wake of a spate of recent mass shootings in the United States.
In June, 21-year-old Dylann Storm Roof shot dead 9 people in Emanuel African Methodist Episcopal Church, South Carolina, after first praying with them.
In October, Christopher Sean Harper-Mercer shot dead 8 people at Umpqua Community College, Oregon.
The right to keep and bear arms is a fundamental right that is codified in the Second Amendment of the Bill of Rights in the Constitution of the United States of America and in the state constitutions of forty-four of its states.
The text of the amendment reads:
"A well regulated Militia, being necessary to the security of a free state, the right of the people to keep and bear Arms, shall not be infringed."
According to a recent study, there are more public mass shootings in the United States than in any other country in the world.
While U.S. has 5% of the world's population, it has experienced approximately 31% of public mass shootings.
