GTA V's automatic-fire sidearm — machine-pistol-class, available at Ammu-Nation, sitting in V's handgun catalog as the full-auto fire-mode counterpart to the semi-automatic pistol tiers.
GTA V's high-caliber semi-automatic sidearm — the heavy-handgun tier of V's pistol catalog, available at Ammu-Nation as a late-progression purchase and one of V's most-recognizable sidearm silhouettes.