I had been keeping an eye out, but it does not show under 'receivers', but under 'firearms' I don't know when he made the receivers available but here you go.....

https://www.tommybuilttactical.com/tmp-receiver

https://www.tommybuilttactical.com/tmp-receiver-fde

I can't be the first to say it, but the TMP receiver is here.....-img_7244.jpg