The Top Mount Base - #406S (Silver) from Weaver is precision-machined to tight tolerances, ensuring a custom-fit for your firearm. Crafted from durable aluminum, this base provides maximum strength, allowing the rings to securely hold in place. Its robust construction guarantees reliable performance, making it an ideal choice for those looking for a stable and dependable mounting solution for their optics. Whether you're outfitting a rifle for hunting or tactical use, the #406S Top Mount Base offers the strength and stability you need.