Real Avid Master-Fit 2" Spanner Wrench AR Platform Tool AVMF2SW

The Real Avid AVMF2SW Master-Fit 2" Spanner Wrench eliminates the frustration of stripped castle nuts and damaged components during AR-15 assembly and maintenance. This precision-engineered tool delivers the exact torque control needed for professional-grade rifle builds and repairs.

What Makes This Different

Unlike standard adjustable wrenches that can slip and damage expensive components, the Master-Fit design provides positive engagement with castle nuts and buffer tube assemblies. The titanium-coated steel construction resists wear while maintaining precise tolerances through thousands of uses. This tool fits standard mil-spec threading found on AR-15, AR-10, and compatible platforms.

Key Features

• Precision 2-inch spanner opening fits mil-spec castle nuts and buffer tube assemblies
• Titanium coating over stainless steel construction for corrosion resistance
• Machined engagement surfaces prevent slipping and component damage
• Compatible with AR-15, AR-10, and similar platform receivers
• Compact profile allows access in tight spaces during assembly
• Heat-treated steel core maintains strength under high torque loads
• Professional-grade tool suitable for armorer and gunsmith use

The Master-Fit wrench handles the specific torque requirements of AR platform assembly without the risk of over-tightening that can crack aluminum receivers. Armorers and competitive shooters rely on this tool for consistent, repeatable installations during routine maintenance and custom builds. The titanium surface treatment extends tool life in high-volume shop environments.

Technical Specs

• Opening size: 2 inches (50.8mm) for standard castle nuts
• Construction: Heat-treated stainless steel with titanium coating
• Compatible platforms: AR-15, AR-10, LR-308 pattern rifles
• Thread compatibility: Standard mil-spec 1.148"-16 TPI
• Handle length: Optimized for proper torque application
• Weight: Lightweight design for extended use
• Manufacturer: Real Avid (USA design)

This spanner wrench represents the difference between amateur modifications and professional-quality work. The precise engineering eliminates guesswork while the durable construction ensures consistent performance across multiple builds and maintenance cycles.