Enhance your Stoeger STR9 with this precision-engineered red dot sight mount plate. This versatile adapter seamlessly integrates with multiple optic brands including ADE,Docter, Burris, Frenzy 1x17x24 MAG MAJ, Vortex Viper, and VENO. HS 407K 507K.The metal construction ensures durability and maintains zero, while providing a stable platform for your preferred optic. The mount plate is specifically designed to match the footprint of your STR9, offering a low-profile solution that maintains proper sight alignment. Perfect for competitive shooters, tactical applications, or anyone looking to upgrade their pistol with a red dot sight. Installation is straightforward, allowing you to quickly transform your STR9 into a red-dot ready platform. This adapter represents an essential upgrade for shooters seeking improved target acquisition and shooting performance.