The Rock River Arms M4 Stock Wrench is an essential tool for AR-15 enthusiasts, designed to facilitate the assembly and disassembly of M4-style stocks. This dual-function wrench, crafted from durable steel with a parkerized finish, ensures a non-slip fit for hand-tightening the castle nut to the receiver.

Perfect for occasional users, this wrench allows for easy removal of old extension tubes and installation of new A4 stocks without causing damage. Its rubber-coated handle provides comfort and grip, making it ideal for both A1 and A2 stock adjustments. Whether you're at the range or working on a build, this tool is a reliable companion.

Key Features:

• Manufacturer: Rock River Arms
• Model: M4 Stock Wrench
• Material: Steel, parkerized finish
• Length: 7-5/8 inches (19.3 cm)
• Comfortable rubber-coated handle
• Designed for AR-15 M4-style stocks