DryFireMag
The Dagger Micro version of the trigger-reset magazine, cut for PSA's slimline 9mm and not interchangeable with Glock 43X/48 units.
The Dagger Micro is sold as PSA's answer to the Glock 43X and 48, and most of the accessory ecosystem treats it that way. Dry fire hardware does not. DryFireMag builds a Micro-specific unit and lists Glock as incompatible, and it sells a separate D-G43X for the Glock slimlines. If you own both pistols you need both magazines.
The mechanism matches the rest of the line. A spring-and-lever assembly catches and resets the trigger, so reps run continuously with both hands on the gun and the sights on target instead of stopping to rack the slide every press. It simulates the 5.5 to 6 pound factory PSA pull, and the optional spring kit adjusts weight for a tuned trigger. The blaze color makes it unmistakable next to a live magazine, which matters more on a carry-size gun that lives in a holster.
For a slimline carry pistol this is arguably a better buy than on a full-size gun. Carry pistols get dry fired more than they get shot, the draw is the skill that decays fastest, and the reset magazine is what keeps a draw-and-press session moving. It accepts no laser cartridge, so scored feedback has to come from elsewhere.
Add the DryFireMag Trigger-Reset Magazine (PSA Dagger Micro) to your build and see how it enhances your platform.