Looking for a holster similar to the Tier 1 Concealment AIWB rigs that have the integrated mag holder. Seems that HK isn’t a popular make for many makers (most focus on Glock and P320 primarily). Anyone have a suggestion?

No personal experience, but McKinatec lists the P2000 in their gun list.
https://www.mckinatec.com/pages/gun-list

Thanks for the tip!