For Glock 43X/48 MOS Hellcat OSP/PRO with the RMSc optic cut to mount a Holosun 407K/507K, No need to modify the slide.
Fully support recoil posts design, durable, reliable.
.058″ thick,ultra Low Profile and lightweight, Easy to install.
Precision CNC Machined from 7075-T6 aerospace grade Aluminum with Black anodized finish, mounting hardware included.