I've written an e-mail to Knife Rights, asking them specifically about the legality of the SOB Punch Dagger in Texas (I focused on the SOB Punch Dagger because of its publicity, and Texas because that's where I live). When/if they respond, I will share it with everyone.
ETA: Well, that was fast. Here's the entirety of the response I received -
See:
https://kniferights.org/legislative-...-bill-hearing/
Also:
https://kniferights.org/resources/legal-blade/
Be advised that some states are considering bills that outlaw non-metallic “undetectable” knives.
Regards,
Doug Ritter
Chairman and Executive Director
Knife Rights, Inc.
Knife Rights Foundation, Inc.
www.KnifeRights.org
twitter.com/KnifeRights
facebook.com/KnifeRights
Email: dritter@KnifeRights.org