The follower design is complete. In the first picture, you can see a quick 3D-printed sample. Actual production followers will be formed of sheet steel. We ended up simplifying things a bit to ensure the highest reliability. In the second picture, you can see how the follower sits in an empty mag. In the last picture, you can see the Wolff Gunsprings we will be using. These springs are designed for the Glock 18 33-round mags. From the beginning, we have designed our follower and mag body to use this particular spring. If you have Wolff springs in any of your guns or mags, you know they make great stuff. 🙂