Leupold steel Quick-Release (QR) rings and bases are expertly designed to allow you to easily remove and reattach your optic, all while maintaining zero (+/- 1/4 MOA). Specifically crafted for Traditions & Inline Bolt Action rifles, these rings and bases are a popular choice for muzzleloaders and large-caliber firearms. The QR system features a patented lever mechanism, precision-machined to exact tolerances, ensuring the steel base engages the ring securely by pulling it down and forward, locking the scope firmly in place. This intuitive system is ideal for hunters and shooters who use multiple scopes on one rifle or for those who frequently travel by air and need to remove their scope quickly. Leupold's 1-piece and 2-piece bases are compatible with all QR rings, offering you the convenience and field-proven accuracy Leupold is known for. The connection between your scope and firearm is critical, which is why Leupold builds their mounts to be as rugged and dependable as the optics they support. Made in the USA and guaranteed to last a lifetime, Leupold mounts are built to withstand the toughest conditions, ensuring reliable performance year after year. With a wide variety of mounting systems available, you're sure to find the perfect match for your firearm and shooting style.