MI Stock Wrench

Tool for receiver and buffer tube assembly: A compact steel wrench designed to securely tighten the castle nut in AR-15/M4 receivers. 100% Made in USA. [oai_citation:1‡midwestindustriesinc.com](https://midwestindustriesinc.com/mi-stock-wrench/?utm_source=chatgpt.com)

Key Features

• Durable steel construction built for long-term use
• Specifically designed engagement for castle nut notches
• Compact size ideal for your range bag or workshop
• Compatible with standard buffer tubes and AR-15/M4 type receivers

Compatibility

Designed for rifles based on the AR-15/M4 platform with standard castle nut configuration. Makes maintenance on the receiver and buffer tube system straightforward and efficient.

Usage & Assembly Tips

1. Seat the tool onto the castle nut, aligning the nut notches
2. Tighten using appropriate hand or torque tool
3. Verify proper engagement and retainment before attaching stock or buffer tube

Included in Box

• 1× MI Stock Wrench (MI-ESW)

Article Details

• Material: Steel
• Color: Black
• Origin: USA