Leupold steel Quick-Release (QR) rings and bases are designed to make it simple and efficient to remove and replace your optic while maintaining zero accuracy (+/- 1/4 MOA). This specific model, crafted for a Browning A-Bolt, is a popular choice for muzzleloaders and large-caliber rifles. The QR mounting system features a patented lever mechanism, precisely machined to engage the steel base, locking the optic securely into place by pulling it down and forward. This system is perfect for hunters and shooters who use multiple scopes on a single rifle or travel by air and need to remove their scope quickly and easily. With Leupold's 1-piece and 2-piece bases compatible with all QR rings, you'll experience the convenience and proven accuracy you've come to expect from a Leupold mount. Built to be as rugged and reliable as the Leupold optics they secure, these mounts ensure a strong and durable link between your scope and firearm. Proudly made in the USA, Leupold mounts are guaranteed to withstand a lifetime of use, making them a reliable choice for any shooter. With a wide range of mounting systems to choose from, you're sure to find the perfect solution for your firearm and shooting style.