Patented in 1920, the Jo. Lo. Ar. Pistol is an upgraded version of Arrizabalaga's Sharp Shooter with two mechanical differences. The first is the installation of an extractor. The second is the installation of a side lever, or palanca, as its inventor Jose de Lopez Arnaiz referred to it. Arnaiz, a Spanish gun dealer, sold Arrizabalaga on the idea of the folding lever which would permit operation of the slide with the shooting hand. As the Sharp Shooter lacked any mechanical safety mechanisms, this upgrade was advertised as both a convenience and safety upgrade. The Jo.Lo.Ar is equipped with a fixed blade front sight and notch rear sight on its hinged barrel. The slide is equipped with the palanca, the face of which is checkered. The trigger is checkered with no trigger guard, and the grip straps and panels are also checkered.

Excellent with 95% plus of the original blue finish with areas of thinning finish and brown patina. The trigger has much of its original vibrant case coloring. Grips are very good with crisp checkering and clear markings. The right panel is cracked at the top screw. Mechanically excellent.