Overbuilt for the task! Warne Rimfire rings are engineered for superior strength and precision, fitting both 3/8 inches and 11mm dovetails found on popular Rimfire rifles. Crafted from high-quality steel and featuring a unique 70/30 horizontal split design, these rings deliver unmatched durability and a rock-solid grip, making them the best choice for securing your optics with confidence. Features a 3/8 or 11mm dovetail for compatibility with a wide range of firearms and accessories The 70/30 split design offers a balanced, secure mounting platform for your optics and accessories Fixed design guarantees a rigid, stable attachment for optimal performance Designed and made in the USA, ensuring high-quality craftsmanship and performance