A handgun has a frame which includes a hollow pistol grip with an opening through one of its sides to provide access to mechanism contained therein. A grip panel provides a closure for the opening and is releasably secured to the pistol grip by a single fastener which extends centrally through the panel and is threadably engaged with a retaining strip which extends across the opening. One end of the retaining strip is anchored by a pin mounted on the pistol grip. The other end of the retaining strip bears against the inner end of a marginal flange which surrounds the opening in the pistol grip. The pin may comprise a pivot pin which supports a part of the mechanism contained within the pistol grip.
A pistol with a frame, a barrel and a firing mechanism. The firing mechanism includes a pivotably mounted hammer having a first hammer member and a second hammer member stationarily interlocked in a pocket of the first hammer member. The firing mechanism also includes a trigger assembly with a trigger member and a spacer pivotably mounted to the frame in a slot of the frame. The barrel has a lug on its bottom rear end that is movably mounted to the frame by a lug pin. A rear end of the lug has a contoured shape to accommodate the top of the trigger and a front of a pull bar being moved under the barrel. A handgrip panel is mounted to a handgrip section of the frame by a single fastener. The panel and handgrip section have cooperating angled surfaces to also mount the panel to the frame.