Abstract: A gun trigger lock having a pair of opposed plates, the upper edges of which are recessed to accomodate a gun safety button irresepctive of whether in the forward portion or the rearward portion with relation to the trigger guard is disclosed in which a single pivotal connection is positioned at a remote rearward portion adjoining the two plates. In spaced relationship to the pivotal connection is a clamping member, shown as a threaded bolt, and the distance from the edge of the threaded bolt to the pivotal member is controlled by a spacer on the pivotal member to the end that the space approximates one-fourth of an inch. A cushion lining is provided on the interior portions of the two plates so that when the bolt is employed to clamp them together scratching is avoided, and a firm seated connection with the trigger guard is accomplished.