Smith & Wesson Model 36

Smith & Wesson Model 36 is a weapon seen in the film.

Planet Terror
Dr. Block (Marley Shelton) tells her son Tony Block (Rebel Rodriguez) to arm himself with a Smith & Wesson Model 36 that's stored in her glove box.

Tony Block
Dr. Block tells Tony to watch where he points that thing or he'll blow his own face off.

Trivia

 * Robert Rodriguez' son Rebel didn't actually handle a real gun, but a squirt gun and the Model 36 was added digitally.