Hi Matt, no sir, the magazines for the Taurus G3C and GX2 are not interchangeable.
Stay safe & have a great day!

Good evening to you!! The GX2 and G3C magazines are not interchangeable. Hope this helps have a good rest of your weekend.

Hi Matt and welcome. Unfortunately, no Sir. The Taurus GX2 magazine is primarily designed for the GX2 pistol and is available in 10, 13, and 15-round capacities. Additionally, the GX4 Carry's 15-round magazine can be used with the GX2 when paired with a fill sleeve. -- 18rd magazines here: -- https://lakelinellc.com/taurus-gx2-18-round-magazine/