And magazine base -- that little metal plate that fits over the open tube? I have an 8-round P220-1 magazine that I received in trade but it has an old-fashioned metal floorplate and only holds seven. Looking for the right parts.

I thought those used a different follower as well, no?

The parts you’re seeking are the “magazine insert” and the “floor plate.” The last of the 7-round P220 magazines that had stainless steel tubes used the same plastic follower as the later 8-round that increased the witness holes to show eight rounds and added the insert and plastic floor plate.

If the magazine involved has seven witness holes that are marked up to “8,” someone must have swapped the bottom parts.

Magazine holes are eight in number, engraved, and the part number is P220-1. No idea who put the bad floorplate on there, but maybe Sig will sell me replacement parts.

I have a box of obsolete P220 mag parts. Please email me at bruce@grayguns.com. I think we can hdlp you.

-Bruce

Thank you sir!