The LEUPOLD STD Ruger American RF Durable Steel Matte Two-Piece Scope Bases (170489) are designed specifically for the Ruger American RF rifle, featuring a durable steel construction in a matte black finish. These scope bases, part of the Leupold STD mounting style, offer a secure and stable way to mount a scope for hunting and shooting activities. With an ambidextrous handing design and a focus on durability, these scope bases are ideal for hunters looking to enhance their shooting experience with a reliable and high-quality scope mount for their rifle.