G22 9mm conversion kit at LoneWolf.

[BigPimping]

I am thinking about getting the drop in conversion kit to turn my G22 into a
G17. I am not sure if I will need to buy all new mags as well. Has anyone done this as well and did you have to buy all new 9mm mags?

[SILENT GUNMAN]

For reliable feeding you'll need the 9mm mags. For fun your .40 mags will work but may not be 100% reliable. They will hold a couple extra rounds though. A 10 round 40 nag will hold about 12 or 13 9mm rounds.