Leupold 171903 Standard Base Matte Black for Ruger American Rifle

The Leupold 171903 Standard Base provides a rock-solid mounting foundation for riflescopes on Ruger American rifles. This precision-machined base eliminates the guesswork in scope mounting while maintaining the low profile shooters demand for versatile hunting and target applications.

What Makes This Different

Unlike generic bases that require extensive fitting, the Leupold 171903 features exact specifications for Ruger American receiver dimensions. The machined steel construction provides superior strength compared to cast alternatives, while the matte black finish resists glare and corrosion. Each base undergoes quality control testing to ensure consistent ring spacing and proper scope alignment.

Key Features

• Precision-machined steel construction for maximum strength and durability
• Matte black finish reduces glare and provides corrosion resistance
• Exact fit engineering specifically for Ruger American rifle receivers
• Standard ring spacing accommodates most popular riflescope models
• Low-profile design maintains clean rifle lines and balanced handling
• Pre-drilled and tapped holes align perfectly with factory receiver holes
• Compatible with Leupold rings and most other quality ring manufacturers

Field performance remains consistent across temperature extremes and heavy recoil conditions. The steel construction handles magnum calibers without flexing, maintaining zero retention through extended shooting sessions. Hunters appreciate the low profile that doesn't interfere with quick target acquisition, while precision shooters rely on the rigid platform for consistent accuracy. The corrosion-resistant finish withstands harsh weather conditions from desert heat to mountain snow.

Technical Specs

• Material: Precision-machined steel construction
• Finish: Matte black for glare reduction and corrosion resistance
• Compatibility: Ruger American rifle receivers
• Ring spacing: Standard spacing for most riflescope configurations
• Profile: Low-profile design for balanced rifle handling
• Installation: Pre-drilled holes for direct receiver mounting
• Manufacturer: Leupold & Stevens, made in USA

This base represents proven engineering from a manufacturer with decades of optics mounting experience. The combination of precise manufacturing tolerances and durable materials ensures reliable scope mounting that maintains accuracy over thousands of rounds.