The 407 and 507 both have an RMR footprint, the hellcat has a shield rmsc cut that is much narrower. The 507k is the holosun optic for your hellcat or other single stack (Glock 48, p365, hellcat, etc.) Also I saw a youtube video and another post from someone talking with a holos...
HOLOSUN SCS MOS Green Multi-Reticle 2 MOA Dot & 32 MOA Circle Parallax-Free Reflex Pistol Sight Compatible with Glock MOS Full-Size Handguns - Solar Charging Sight (NOT for Glock 43X MOS or 48 MOS) Free shipping, 2 days Amazon HOLOSUN SCS MOS Green Multi-Reticle 2 ...
These Red Dot Sights are only available in Wolf Gray from OpticsPlanet, and they provide excellent target acquisition and sighting capabilities for your favorite rifle or carbine. With 12 brightness settings, you can adjust the Holosun OPMOD HS510C 1x30mm Reflex Red Dot Sight to your specific ...