I wasn't even aware of this ammo until you posted about it. Ultimately I did find it even though you weren't willing to share your source. Thanks for your very friendly, helpful and constructive posts nonetheless!
The A&S trigger frame, FFT trigger, FFT, hammer, and OEM disconnector work for me. I noticed the hook on the oem disconnector is a couple thousandths smaller than the FFT disconnector. This combo works like a champ and I didn’t have to file anything!