The Glock 43x is a Gen 5 variant, which means its grip does not have finger grooves, but it does feature the Gen 5 texturing. This model combines the short 3.41" barrel of the original Glock 43 with the longer grip frame assembly of the Glock 48, offering users the best of both worlds.
Stay safe & have a great day!

Hi and welcome. The G43x is actually an in between Gen Hybrid and not associated with a specific Gen. The pistol comes complete with a Glock Marksman Barrel (GMB), two magazines, a magazine loader, a cleaning kit, a pistol case, a backstrap set, and a gun lock, providing everything needed for maintenance and customization. Cheers and stay safe!

The Glock 43x isn't really categorized by generation, it's its Own thing but, that being said, it does have the Gen 5 Marksman barrel.