Night Fision Optic Plate + Backup Sight Combo Features The Night Fision Optic Plate + Backup Sight Combo is built around a mounting plate machined from 17-4 stainless steel a material chosen for its strength under the repeated slide cycling and recoil impulses a carry pistol sees over its service life. The nitride coating adds further corrosion resistance and surface hardness protecting the plate s mounting surface from wear over years of holster carry and range use. Designed specifically to fit the Springfield Hellcat the plate aligns a Holosun 507K or any other optic sharing that same mounting footprint directly over the pistol s slide cut. Tight manufacturing tolerances keep the optic seated securely reducing the chance of point of impact shift from a loose mount. Backing up the optic is a tritium front night sight finished in yellow paired with a black rear sight giving the shooter a visible aiming reference day or night and in the event of an optic failure. Both sights are positioned to co-witness with the mounted red dot so the shooter can quickly reference iron sights without reacquiring a new sight picture. The combo package includes extra mounting screws and a dedicated installation tool simplifying setup without requiring a trip to a gunsmith. The Night Fision Optic Plate + Backup Sight Combo for Springfield Hellcat gives carry pistol owners a complete co-witness solution for sale at GrabAGun. Night Fision Optic Plate + Backup Sight Combo Specifications Manufacturer: Night Fision Model: Optic Plate + Backup Sight Combo Type: Night Sight Compatible Hosts: Springfield Hellcat Holosun 507K Color: Black Material: 17-4 Stainless Steel Coating: Nitride Front Sight: Yellow Tritium Rear Sight: Black Available At: GrabAGun