Leupold BackCountry Cross-Slot Base Nosler M21 20 MOA Matte Black

The Leupold BackCountry Cross-Slot Base transforms your Nosler M21 rifle into a precision long-range platform with its built-in 20 MOA cant. This mounting system extends effective shooting range by compensating for bullet drop at extended distances. Machined from aircraft-grade aluminum with a corrosion-resistant matte black finish, it delivers the rock-solid foundation serious shooters demand.

What Makes This Different

Unlike standard zero-cant bases, this model incorporates a precise 20 MOA forward slope that maximizes your scope's elevation adjustment range. The cross-slot design provides multiple mounting positions for optimal scope placement and eye relief. CNC-machined construction ensures perfect alignment between mounting surfaces, eliminating the accuracy-robbing stress that can occur with inferior bases.

Key Features

• 20 MOA built-in cant extends long-range shooting capability
• Cross-slot design allows flexible scope positioning
• Aircraft-grade 6061-T6 aluminum construction
• Matte black Type III hard anodized finish resists corrosion
• Precision CNC-machined for perfect scope ring alignment
• Compatible with Nosler M21 rifle platforms
• Accepts standard Picatinny/Weaver rings

Field performance centers on the base's ability to maintain zero under heavy recoil and temperature extremes. The 20 MOA cant proves particularly valuable for hunters pursuing game at 400+ yards and competitive shooters engaging targets beyond 600 yards. Multiple cross-slots accommodate various scope lengths and allow fine-tuning of eye relief for optimal shooting position. The hard anodized finish withstands harsh weather conditions without compromising appearance or function.

Technical Specs

• Material: 6061-T6 aluminum alloy
• Finish: Matte black Type III hard anodized
• Cant: 20 MOA forward slope
• Compatibility: Nosler M21 rifle receivers
• Mounting: Cross-slot Picatinny/Weaver design
• Weight: Approximately 3.2 ounces
• Manufacturer: Leupold & Stevens
• Model: 182848

This base represents the foundation for serious long-range accuracy, combining Leupold's manufacturing precision with practical features that matter in the field. The 20 MOA cant and cross-slot versatility make it an essential upgrade for shooters ready to extend their effective range.