This is the Glock 39 .45 GAP 6-round magazine. 

If you’ve been looking for a factory replacement or spare magazine for your Glock 39, you’re in the right place!

Constructed from impact-resistant polymer and featuring a hardened steel insert, this magazine delivers superior durability. Inside, you’ll find an anti-tilt polymer that keeps each round perfectly aligned and feeding flawlessly.

Last but certainly not least, the rear-facing witness holes allow you to keep track of your remaining rounds with ease! From concealed carry to the range, this magazine will have your back! 

These are sure to sell quickly, so grab a few while you can!