The Crowbar is a tool-turned-melee-weapon that debuted in Grand Theft Auto V and Grand Theft Auto Online and is due to appear in Grand Theft Auto VI. Rendered with a red handle and grey business end, it is a light, one-handed weapon that trades heavier damage for a faster attack speed, playing a close-quarters role similar to the knife. No manufacturer or real-world inspiration has been specified for it in any of its appearances.
Weapon data via GTA Wiki (Fandom), CC BY-SA 3.0.