Weaver 48108 Top Mount Base for Marlin 455/MR7 - Black Steel

The Weaver 48108 Top Mount Base transforms Marlin 455 and MR7 rifles into precision optics platforms. This machined steel base provides the rock-solid foundation needed for consistent scope mounting on these popular rimfire rifles. Built to Weaver's exacting standards, it eliminates the guesswork from scope installation while maintaining the rifle's sleek profile.

What Makes This Different

Unlike generic mounting solutions, the Weaver 48108 is precision-machined specifically for Marlin 455 and MR7 receiver dimensions. The high-grade steel construction resists flexing under recoil, maintaining zero shot after shot. Standard Weaver rail spacing ensures compatibility with virtually any scope ring system, while the black matte finish resists corrosion and eliminates glare.

Key Features

• Machined steel construction for maximum strength and durability
• Precision-fitted for Marlin 455 and MR7 rifle receivers
• Standard Weaver rail configuration accepts all compatible rings
• Low-profile design maintains rifle's original sight line
• Corrosion-resistant black matte finish
• Pre-drilled and tapped mounting holes for secure installation
• No gunsmithing required for proper fitment

Field performance remains consistent across temperature extremes and shooting conditions. The steel construction maintains dimensional stability that aluminum bases cannot match, particularly important for precision shooting applications. Competition shooters and hunters alike benefit from the repeatable zero retention this base provides, even after scope removal and reinstallation.

Technical Specs

• Material: High-grade machined steel
• Finish: Matte black oxide coating
• Compatibility: Marlin 455 and MR7 rifles
• Rail Type: Standard Weaver configuration
• Mounting: Factory receiver holes
• Profile: Low-profile top mount design
• Country of Origin: United States

The Weaver 48108 represents decades of mounting system expertise applied to modern rimfire platforms. Professional gunsmiths and experienced shooters recognize Weaver's reputation for creating mounting solutions that simply work, shot after shot.