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. Compatible with Glock Slimline MOS models Fits Holosun 507k, and other optics with compatible mounting footprint. See Pairing Guide for all optic compatibility. 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