I am up to 10 magazines for my Glock 20, which should be more than enough. Had 5 for years, and wanted to add five more.
You see three sizes in this photo, regular 15 round mags with Arrendondo plus 5 extensions, Regular 15 round mags with KRISS extensions making them hold 34 rounds of 10mm ammo, and Korean manufacture 30 round mags.
No one makes tall 10mm mags, for whatever reason, so if you want to go tall, you have to get creative and modify something for the .45 acp market. The Korean mags are by far, easier to customize for use in the Glock 20 & Glock 29, than the KRISS option, which does hold a couple more rounds.
Anyone interested in adding a few extra rounds to your Glock 20 or 29, let me know, and I can share what I have learned.
