Product DescriptionThe Weaver Mounts Top Mount Scope Base #12 delivers a precise, secure foundation for your optic. Machined to tight tolerances from durable aluminum and finished in gloss black, this 1-piece base features Weaver&';s proven cross-lock design to resist recoil and keep rings firmly in place. It installs easily and fits a wide range of firearms including Remington 514 and Winchester 74, among many others. Mounting screws are included. Made in the USA.Product Highlights Precision-machined aluminum base with gloss black finish Weaver cross-lock design for rock-solid ring retention under recoil 1-piece base for a 2-piece system; mounting hardware included Compatible with numerous rimfire and centerfire models (see compatibility) Made in the United States of America Specs Product Type: Top Mount Scope Base #12 Material: Aluminum Finish/Color: Gloss Black Configuration: 1-piece base for a 2-piece system Compatibility (selected): H&R 800 (Front & Rear); Marlin 80, 81, 980 (Rear), XT-22/XT-17 (Front & Rear); Mossberg 25, 26, 42, 46M, 140, 142, 146, 45-46 with 3/4" dia. barrels (Rear); 43, 44, 144, 46BT, 35 (Rear); 50, 51, 151, 152, 350, 352 (Front & Rear); Remington 514 (if not drilled and tapped) & 550 (Front & Rear); Ruger American Rimfire; Savage 4, 5, 12 (Rear) and 6, 7 (Front & Rear); Sears 42, 43 (Rear); Stevens 56, 66 (Rear) and 57, 76, 4171/2, 762 (Front & Rear); Stevens-Springfield 85, 87, 872 (Front & Rear); Winchester 47, 57, 69, 69A, 72 (Rear) and 74 (Front & Rear) Mounting Hardware: Included Country of Manufacture: United States of America UPC: 076683480125 Manufacturer Part Number: 48012 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.