The largest magazine rounds size you can buy for your Taurus pt 99 9mm is 17 rounds.
Available places to buy it include:
- Primary Arms: offers a variety of Taurus pt 99 9mm magazines, including 17-round magazines.
- Optics Planet: sells Taurus pt 99 9mm magazines, including 17-round magazines.
- GunMag Warehouse: offers Taurus pt 99 9mm magazines, including 17-round magazines.
- Midway USA: Sells Taurus pt 99 9mm magazines, including 17-round magazines.
- Local Gun Stores: Check your local gun stores to see if they carry Taurus pt 99 9mm magazines, including 17-round magazines.