The Sons of Liberty Gun Works Mil-Spec 6 Position Carbine Length Buffer Tube is a professional-grade receiver extension designed as a foundational component for AR-15 and AR-10 builds. Machined from high-strength 7075-T6 aluminum, it offers significant durability and rigidity compared to standard 6061 alternatives. This tube is finished with a Mil-Spec Type III Hard Coat anodize on the exterior and a dry film lubricant on the interior to ensure smooth cycling and long-term wear resistance. It features six adjustment positions, allowing for precise customization of a rifle's length of pull to suit different shooter sizes or gear configurations. Sons of Liberty Gun Works Angled Steel M-LOK Anti Rotation QPQ QD Socket, Fits Under Most Laser Devices at 11/1 O'Clock 4140ANGLEDSOCKET