Weaver 48042 Top Mount Base Mossberg 400/Remington 10/11/12 Black

The Weaver 48042 Top Mount Base transforms your Mossberg 400 or Remington 10/11/12 shotgun into a versatile platform ready for optics mounting. This precision-machined base eliminates the guesswork of scope installation while maintaining the low profile essential for quick target acquisition.

What Makes This Different

Unlike generic mounting solutions, the Weaver 48042 features receiver-specific machining that ensures perfect alignment with your shotgun's action. The base accepts standard Weaver-style rings and provides a rock-solid foundation that won't shift under heavy recoil. Factory tolerances guarantee consistent return to zero even after repeated mounting and dismounting.

Key Features

• Precision-machined aluminum construction for lightweight durability
• Matte black anodized finish resists corrosion and glare
• Standard Weaver rail pattern accepts most ring styles
• Receiver-specific design for Mossberg 400, Remington 10, 11, and 12 shotguns
• Low-profile design maintains quick-handling characteristics
• Drilled and tapped mounting holes ensure secure attachment
• Compatible with scopes up to 50mm objective diameter

Field performance remains consistent across temperature extremes and heavy use cycles. The base maintains zero through hundreds of rounds of high-velocity loads, making it suitable for competitive clay shooting, waterfowl hunting, and tactical applications. The anodized finish withstands saltwater exposure and harsh weather conditions without degradation.

Technical Specs

• Material: 6061-T6 aluminum alloy
• Finish: Matte black Type III hard anodizing
• Rail Pattern: Standard Weaver/Picatinny compatible
• Compatibility: Mossberg 400, Remington 10/11/12 shotguns
• Mounting: Drilled and tapped receiver holes
• Weight: Approximately 2.1 ounces
• Length: 4.5 inches
• Made in USA

Professional gunsmiths and serious shooters choose Weaver mounts for their proven track record of maintaining zero under demanding conditions. The 48042 base represents decades of mounting system refinement specifically engineered for semi-automatic shotgun platforms.