It appears that the MMB-17 has the closest specs to the F2 – same lofts, same offsets. The sole widths and cog location are slightly different. If those factors are more important, then actually the non-Forged Tour+ has more similar numbers there.
I’ve hit both and can recommend each one. The Tour+ doesn’t have a 3 iron, but honestly, it feels as smooth as most forged clubs I’ve hit. Really! I have a set of them with the XCaliber Tour X Stiff flex shaft and they’re sweet! Here’s the link: https://www.golfworks.com/maltby-ke4-tour-iron-heads/p/ma0261/
Here’s the link to the MMB-17: https://www.golfworks.com/maltby-mmb-17-forged-iron-heads/p/ma0226/
Hope this helps! Michael