Kevin, this model includes 3 magazines total, one flush fit 17 round magazine and two extended 19 round magazines. Hope this helps.

Hi Kevin and welcome. (3) Magazines are included, (1) Flush fit 17rd and (2) Extended 19rd Magazines. Details here: youtube.com/watch?v=XMTcyIdmuCc ------------ Cheers, stay safe and enjoy!

3 mags see *****Glock 19X MOS Threaded Barrel Specifications and Features:
Caliber: 9x19mm Luger
Barrel Length: 4.52"
Capacity: 19 Round
1/2x28 Threaded Barrel
Modular Optic System (MOS)
Safe Action Trigger System
Trigger, Firing Pin and Drop Safety
Polymer frame and grips
Cold Hammered, Tenifer Coated Marksman Barrel
Loaded chamber indicator
Suppressor Height Ameriglo Back Up Sights
Interchangeable Backstraps
*****3 Magazines
Length: 7.94"
Flat Dark Earth nPVD Finish

Hi Keven, even better, this comes with (3) 19rd magazines.
Stay safe & have a great day!