It is illegal in Texas to own a gravity knife. It is illegal to open or conceal carry any knife with a blade over 5 ½ inches long, throwing knives or stars, dirks, daggers, stilettos, and other stabbing knives, bowie knives, swords, or spears. read more
In 2005, in an unpublished decision, the Texas Court of Appeals found, in Cook v. State, that a butterfly knife fell within the statutory definition of a switchblade, and was therefore illegal to possess or carry. However, because the law which made switchblade knives illegal was repealed in 2013, butterfly knives are now legal to own in Texas. read more
In Texas, a butterfly knife is considered a type of switchblade, which is defined in the Penal Code as any knife that folds into the handle and opens automatically by a spring mechanism or the force of gravity. read more
The focus of Texas law is on three different things: the age of the party carrying the knife, blades 5.5 inches or longer, and certain locations. Knives with blades 5.5 inches or more are called “location-specific knives” in the TPC. Adults can carry knives with blades less than 5.5 inches anywhere in the state. read more