I'm lagging far behind in the magazine department. I only have 4 OEM and 4 ProMag magazines.
All I need to complete a build is the slide and a frame.
We discussed the Vuurwapen frames last week in a live session at the Marine Gun Builder youtube channel. Vuurwapen is STILL waiting for ATF approval. And we all know how the government is, especially recently. Vuurwapen might get approval in the next few months or then next few years.
And a yet unnamed company should be announcing a Gen 5 compatible 80% frame at teh next Shot Show in January. We'll have to wait and see.