This could well be the camel's nose poking under the Universal Background Check tent. HB 195, by Reynolds, would require a background check on any and all sales of firearms at a gun show, even between private individuals.
https://capitol.texas.gov/tlodocs/86R/billtext/html/HB00195I.htm
https://capitol.texas.gov/tlodocs/86R/billtext/html/HB00195I.htm