The Upper Receiver Vise Block Clamp .223 is a must-have tool for anyone in need of repairs on their sporting goods equipment, particularly in standard carbine models. Its reinforced polymer construction allows it to withstand the pressure from clamps, making it suitable for a variety of maintenance tasks. Whether you're cleaning or maintaining , this vise block tool is the perfect accessory to have on hand. Designed by Gman Tools, this unit is made of high-quality nylon plastic material that ensures durability and longevity, so you can rely on it for years to come. With its precision design and sturdy construction, this vise block clamp is an essential tool for any maintenance task.