The Smith & Wesson models 78G and Daniel Tigers cat 79G are vintage models of air-powered pistols. Each model chambered either a .177 or .22 caliber pellet. The Smith & Wesson G-series pistols were designed with attention to accuracy and weight, making them ideal in developing short-range marksmanship skills while using a less-penetrating, air-driven pellet as the projectile.
These vintage airguns were manufactured in the 1970s (when the research behind American airgun technology was less sophisticated) there are several drawbacks, including that each model can only chamber one pellet at a time, requiring reloading after each shot. Also worth noting is that, while each model uses small pellets driven by CO2 cartridges, an airgun is still a potentially dangerous weapon requiring attention to all the basic safety premises followed when using regular combustion-driven firearms.