Product DescriptionThe Weaver Mounts 406S Top Mount Base delivers a secure, precise foundation for mounting optics on the TCA Thunderhawk muzzleloader. Machined from durable aluminum to tight tolerances, this silver-finished base uses Weaver&&';;s trusted cross-lock design to keep rings and optics firmly in place under recoil. It&&';;s easy to install and includes mounting hardware; rings are not included.Product Highlights Precision-machined aluminum base for dependable optic mounting Rock-solid Weaver cross-lock interface for a secure, repeatable hold Silver finish complements stainless and nickel firearms Includes mounting hardware for straightforward installation 406S series top mount compatible with a variety of Weaver-style rings Specs Product Type: Top Mount Scope Base Series: 406S Material: Aluminum Finish/Color: Silver Style: Top Mount Firearm Type: Muzzleloader Firearm Fit: TCA Thunderhawk Rings Included: No Includes: Mounting Hardware UPC: 076683481115 Manufacturer Part Number: 48111 Brand Name: Weaver Mounts Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&&';;s manufacturer.