Leupold steel Quick-Release (QR) rings and bases offer a convenient solution for easily removing and reattaching your optic while maintaining zero (+/- 1/4 MOA). This specific model is designed for the Winchester 70 and is a popular choice among muzzleloader enthusiasts and large caliber rifle users. The QR mounting system features a patented lever mechanism, precision-machined to ensure a secure engagement between the steel base and the ring. By pulling the lever down and forward, the system locks firmly into place, allowing for quick transitions between multiple scopes on one rifle. This feature is particularly beneficial for hunters and shooters who travel by air and prefer the convenience of detaching their scope for transport. Our QR 1-piece and 2-piece bases are compatible with all QR rings, providing the reliability and field-proven accuracy you expect from Leupold mounts. The connection between your scope and firearm is critical, which is why our mounts are engineered to be as rugged and dependable as the optics they secure. With a wide variety of mounting systems available, you're sure to find the perfect match for your firearm and shooting style. Proudly made in the USA, Leupold mounts are built to withstand a lifetime of rigorous use, ensuring they will never let you down when it matters most. Elevate your optics setup with Leupold QR rings and bases for unparalleled reliability and versatility.