The Weaver 48501 Top Mount Base transforms Remington 700 short action rifles into precision platforms capable of accepting standard Weaver-style rings and optics. This aluminum base replaces factory iron sights with a solid mounting foundation that maintains zero through thousands of rounds.
What Makes This Different
Unlike basic rail systems that add unnecessary height, the Weaver 48501 positions optics at the optimal elevation for natural cheek weld and sight alignment. The machined aluminum construction provides superior strength-to-weight ratio compared to steel alternatives while resisting corrosion in harsh field conditions. Four precision-drilled mounting holes ensure rock-solid attachment to the receiver without flexing under recoil.
Key Features
- Machined 6061-T6 aluminum construction for lightweight durability
- Matte black anodized finish eliminates glare and resists wear
- Compatible with all standard Weaver and Picatinny rings
- Four-screw attachment system distributes stress evenly
- Low-profile design maintains proper scope height
- Precision-machined dovetail slots for secure ring engagement
- Fits Remington 700 short action receivers exclusively
Field testing demonstrates consistent point-of-impact retention across temperature extremes from -20°F to 120°F. The base handles magnum calibers including .300 Winchester Magnum and .338 Lapua without loosening or shifting. Hunters report maintained zero after extended backcountry trips, while competitive shooters rely on this base for match-grade accuracy requirements. The corrosion-resistant finish withstands saltwater exposure and humid conditions without degradation.
Technical Specs
- Material: 6061-T6 aluminum alloy
- Finish: Matte black anodized
- Compatible with: Remington 700 short action only
- Ring compatibility: Standard Weaver and Picatinny
- Mounting screws: Four 6-48 thread
- Weight: Approximately 2.1 ounces
- Country of origin: United States
- Manufacturer: Weaver Optics
Professional gunsmiths recommend this base for its consistent manufacturing tolerances and reliable performance across diverse shooting applications. The proven design eliminates common mounting issues while providing the foundation for precision optics systems that demand unwavering accuracy.