Weaver Extended Multi Slot Base System
Introduction
The Weaver Extended Multi Slot Base System for Winchester 70 LA (Model 99480) is a well-engineered accessory designed for rifle enthusiasts seeking versatility in mounting optics. Manufactured by Weaver, a respected name in the firearms accessory industry, this base system is specifically intended to enhance the functionality of the Winchester Model 70 Long Action rifles. By providing an extended mounting platform, it allows for a broader range of gun and optic combinations, making it an essential tool for both hunting and tactical applications.
Product Overview
The Weaver Extended Multi Slot Base is crafted from durable 6061 T6 aluminum, ensuring that it is both lightweight and robust. The matte black finish not only adds an aesthetic appeal but also protects against oxidation, corrosion, and wear, making it suitable for various environments. The base features an additional 1-inch of forward length, allowing for flexible setup options that can accommodate different optics. Unique design elements include a one-piece multi-slot construction and a cross-lock design that enhances stability during use.
Key Features and Specifications
- Manufacturer: Weaver
- Color: Matte Black
- Gun Type: Rifle
- Length: 1 inch in mount
- Mount Type: Weaver
- Attachment Type: Weaver Picatinny
- Material: 6061 T6 Aluminum
- Finish: Type III hard coat anodized
- Features: Lightweight construction, one-piece multi-slot design, extended rail for additional mounting flexibility, cross-lock design
- MOA Options: Available with 20 MOA cant for extended range optic adjustment or zero cant for standard optic use
User Experience
Using the Weaver Extended Multi Slot Base in various scenarios has proven to be a rewarding experience. The installation process is straightforward, with clear instructions that allow for quick mounting. Once installed, the extended length offers significant flexibility—mounting a variety of optics with ease. Whether engaging in long-range shooting or setting up for a day of hunting, the added 1-inch rail allows for optimal eye relief and comfort.
In practical use, the lightweight aluminum construction combined with the robust design ensures that the base remains secure even under heavy recoil. Tests conducted in different weather conditions showcased the durability of the Type III hard coat anodized finish, which showed no signs of wear or corrosion. The cross-lock design further enhances stability, ensuring that the mounted optics maintain their zero even after extensive use.
Pros and Cons
Pros
- Lightweight yet durable construction
- Extended rail provides versatile mounting options
- Robust design minimizes movement and maintains zero
- Corrosion-resistant finish increases lifespan
- Easy installation process
Cons
- Some users may find the price point slightly higher compared to basic bases
- Limited to Weaver-style scopes and mounts
Conclusion
Overall, the Weaver Extended Multi Slot Base System for Winchester 70 LA (Model 99480) stands out as an excellent choice for those looking to enhance their rifle’s versatility and functionality. Its combination of lightweight materials, robust construction, and thoughtful design features make it a valuable addition to any rifle enthusiast’s gear. While it may come at a premium price, the benefits it provides in terms of flexibility and durability justify the investment. Whether for competitive shooting, hunting, or tactical applications, this base system is designed to meet a variety of needs effectively.



