It may not have been posted yet because Spectre LTD seems to have made it for an outfit called Crusader Arms, which is not a forum vendor to my knowledge. I'm not sure if this is Spectre Ltd trying to go through its own retail channel, since they've previously built the MCR for Wolverine. Their Galil folder didn't receive much coverage here until Wolverine started selling it with full rifles, since Spectre Ltd is not a forum vendor, either. Until the vendor is confirmed as a forum supporter, forum rules dictate no direct links can be posted, though you can name the retailer and item, and people can search from there on their own.
As an aside, this also explains why Spectre LTD was reluctant to provide uppers to True North Arms for their MCR 9mm conversion kit, as their upper foundry was busy trying to craft the Crusader. Hopefully a forum vendor like Wolverine will be given the opportunity to sell whole units, and the builder kits, which include the upper and lower, but no trigger, stock or pistol grip with for use with re-homing parts from safe queens. It hasn't been announced, but I suspect they also eventually make upper kits with magwell adapters available, so people can either get a spare upper for their MCR, or find a use fro their pre-Spec 180 MCR lowers.