The Vector Optics Dovetail Scope Stopper (9-11 mm) offers a secure and dependable solution for preventing scope movement on air rifles and other dovetail‑based platforms. Engineered for quick installation, this stopper block provides a firm rear stop point for your optic mounts, ensuring consistent positioning and improved long‑term stability. Its robust, shock‑resistant construction helps maintain zero by eliminating rearward creep caused by recoil, making it ideal for spring‑powered and gas‑ram rifles. Designed for compatibility with standard 9-11 mm dovetail rails, it integrates seamlessly with most scope rings, offering a simple yet highly effective upgrade to your mounting setup. Compact and lightweight, it adds reinforcement without unnecessary bulk, contributing to a cleaner and more reliable optic installation. Features Durable full‑metal construction Matte‑black anodized finish Compatible with 9-11 mm dovetail rails Prevents scope mount rearward movement under recoil Lightweight, compact, and easy to install