Night Fision's Pistol Optic Plates offer precision, durability, and value for shooters needing a mounting solution for their red dot sight. Crafted from premium 17-4 stainless steel and built to the tightest tolerances, these plates withstand harsh recoil and ensure a secure, accurate fit. The nitride coating provides extra protection, and each package includes extra screws and an installation tool for easy setup. Their Optic Tool has a T10 Torx head for all included hardware installation, and a small flat head for windage and elevation adjustments as well as mating with the battery screw compartment on Holosun Optics. Loop a key ring through the lanyard hole to attach it to your belt to help retain this small, but valuable tool. Even better, attach a Glow Rhino Spark and you'll find your Night Fision Optics Plate tool in the dark. Compatible with Springfield Hellcat Pro models, models with a Shield RMSc footprint Fits Holosun 507k, and other optics with compatible mounting footprint. Machined from 17-4 Stainless Steel & Nitride coated Optic Plate thickness: 0.2" Limited Lifetime Warranty INCLUDED : Precision Optic Plate Hardware for Holosun 507k in packs of 3 Night Fision Optic Tool