The JE Machine Tech 223/5.56 Rifle AR10 Mil-Spec 6 PT Receiver Extension Buffer Tube is expertly crafted from durable 6061-T6 aluminum, ensuring resilience and performance. It features six adjustable positions for personalized customization, making it suitable for both recreational and functional builds. The Type II anodized finish offers enhanced protection and aesthetics, available in a range of colors and designs, including standard, slotted, arrow, and dotted styles. Lightweight at just 3.8 oz, this buffer tube combines precision engineering with versatility, making it an ideal choice for any firearm enthusiast looking to upgrade their equipment. Proudly made in the USA. Constructed of 6061-T6 aluminum with meticulous care given to each cut, our Mil-Spec buffer tubes are sure to be the perfect choice for any range toy or utility build. Our buffer tubes come in standard, slotted, arrow, and dotted designs. Available in a variety of colored finishes and compositions (7075-T6 available for standard) to meet specialty needs. Mil-Spec Type II anodized 6061-T6 aluminum 6 positions 3.8 oz