I decided to stop producing and selling the SCD, allowing the patent to expire, so it could enter the public domain.

As of September 2021 the SCD patent has expired. I have given, completely free and without consideration, my drawings, CAD files, and manufacturing contacts to two different groups that have expressed interest in continuing to produce and develop the striker control device.

Tau Development Group is no longer in business. Neither Tau nor myself have any SCD parts or inventory.

Hopefully the SCD will be available again relatively soon. I think an SCD-like feature is something that should be present on all striker fired guns and, now that it is unencumbered by patents, perhaps that is something that will come to pass.