The Block Is Inside the Barrel
A prop firearm can look convincingly real while being mechanically incapable of sending a bullet downrange. In some non-firing examples, metal pins or lead are fixed inside the barrel, obstructing the passage a projectile would need to travel through. The alteration is meant to be permanent, not a removable plug that turns the gun back into a working weapon.
That hidden change matters because a realistic exterior alone says little about what a prop can do. On screen, viewers see the shape, finish, and handling—not the blocked bore.
Not Every Prop Gun Works the Same Way
Productions may use inert firearms, replicas, or weapons built to fire blanks, depending on the scene. A blank makes a flash and loud report but contains no bullet; it is not the same as a permanently blocked, non-firing prop. A blocked firearm is suited to scenes where its real-looking form is useful but firing is not required.
This distinction also explains why “prop gun” is not a guarantee of harmlessness. Different objects used as props have different capabilities, and a weapon that can fire blanks still produces hot gas and debris. The practical point is that a firearm’s appearance cannot establish whether it is functional: that depends on its construction and alteration, details hidden from the camera.
