The Tacfire AR10 Polymer Lower Receiver Vise Block in black is a must-have for firearm enthusiasts who value precision and care. Designed to securely mount your AR10 lower receiver it ensures safe handling during maintenance repairs or assembly. Made from durable polymer this vise block fits seamlessly into the magazine housing from either the top or bottom offering versatility and ease of use. Its lightweight yet sturdy construction prevents distortion or damage making it an essential tool for any firearm maintenance kit.