The Hellcat to K/RMSC Adapter Plate by Calculated Kinetics offers a robust solution for mounting optics on your Springfield Armory Hellcat OSP. This precision-machined adapter features full recoil lugs, ensuring a stable and secure mounting point for your optics. Made in the USA and finished with hard anodized coating, this adapter is built to withstand rigorous use. It includes all necessary hardware, Torx bits, Vibratite, and clear instructions for easy installation. Recommended for use with Holosun 407K/507K/EPS Carry/SCS Carry optics and Ameriglo SA 504 sights for optimal co-witnessing. Upgrade your Hellcat's capabilities with this reliable optic mount.