Abstract: A device for measuring the force required to discharge a firearm by pulling its trigger. The device includes a base with a threaded rod rotatably secured thereto. A spring balance is threadably fastened to the threaded rod and is adapted for movement relative to the base when the threaded rod is rotated. The spring balance has a piston rod with a free end formed into a catch for engaging the trigger of a firearm on the base. An upwardly-extending, trigger guard retainer is affixed to the base adjacent the free end of the piston rod for retaining the firearm. By rotating the threaded rod, the piston rod is drawn against the firearm trigger such that the force required to discharge the firearm can be read from the spring balance.