If you are looking for a Cali-Legal Out The Front knife, here is a high quality auto knife by Pro-Tech. This knife is a single action auto (this means the button triggers it and locks the blade in place. To close the blade you push the button and then pull on the side piece to close the blade.) The Tantilla OTF is one of the best pieces of workmanship I have seen in this size and price range. A great little automatic knife.
Blade: 1.93" Long / .110" Thick Handle: 3.4" Long / .43" Thick Open Overall Length: 5.33" Weight: 2.0 Ounces