Night Fision PLATE+NS 507K SPGFLD HELLCAT

The Night Fision PLATE+NS 507K for Springfield Hellcat is a two-part solution that pairs a precision optic mounting plate with a co-witness backup sight system—designed for shooters who want a red dot sight on their carry gun without sacrificing iron sight reliability. This combo brings together rugged engineering and low-light capability in a package built for the Hellcat OSP slide.

The optic plate is machined from 17-4 stainless steel and nitride-coated to resist corrosion and wear, staying at just 0.08" thick so it doesn't add unnecessary bulk to your carry gun. It's engineered to mount the Holosun 507K and other compatible optics (consult the pairing guide for your specific model). The backup sight setup includes a tritium-lit front sight paired with a blank rear—positioned at lower 1/3rd co-witness height so your dot and irons naturally align. The rear sight features anti-glare serrations to keep your sight picture clean and free of reflections in bright conditions.

Low-light work is where the tritium front really shines: that passive glow gives you a sight picture when your dot dies or when you're operating in near-zero ambient light. For a carry gun or defensive pistol that lives on your hip, that redundancy matters. The package includes extra fasteners and an installation tool so you can get it mounted without hunting down the right screws or wondering about torque specs.

If you're running a Hellcat OSP and want a modern optic-ready platform without abandoning irons, this setup removes the guesswork and gets you behind a proven combination out of the box.

Key Features

• 17-4 stainless steel optic plate with nitride coating for corrosion resistance
• Tritium-illuminated front sight for low-light visibility
• Blank rear sight with anti-glare serrations for a clean sight picture
• Lower 1/3rd co-witness height for natural alignment between red dot and irons
• Compatible with Holosun 507K and other optics (see pairing guide)
• Fits Springfield Hellcat OSP models
• Includes installation tool and extra fasteners
• Plate thickness 0.08" keeps profile compact

Specifications

Frequently Asked Questions

Will this mount work on a standard Springfield Hellcat, or only the OSP version?

This plate is designed specifically for the Springfield Hellcat OSP (Optic Sight Pistol) models, which come with a factory-cut slide. It will not fit standard Hellcat slides.

What red dot sights work with this plate?

The plate is engineered for the Holosun 507K and other compatible optics. Check Night Fision's pairing guide to confirm your specific optic model before ordering.

What does lower 1/3rd co-witness mean?

Lower 1/3rd co-witness means your backup iron sights are positioned so the top of the rear sight sits at about one-third the height of your red dot window. This gives you a clean, unobstructed view of the dot while keeping irons visible and usable if needed.

Is the tritium sight bright enough for everyday carry?

Tritium sights are self-illuminated and don't require an external light source. They're designed to provide a visible sight picture in low-light conditions, including darkness, without the need for a light or the battery dependence of electronic sights. In bright daylight, you'll rely on your red dot or the physical sight outline.