The Superlative Arms AR-15 Adjustable Gas Block with a .875'' inside diameter and melonite finish is a premium component designed for optimal firearm performance. Crafted from durable stainless steel this adjustable gas block allows for precise control of gas flow enhancing the reliability and efficiency of your AR-15. Its sleek melonite finish not only adds to its aesthetic appeal but also provides superior corrosion resistance ensuring long-lasting durability. Perfect for customizing your AR-15 this gas block offers both functionality and style for firearm enthusiasts seeking enhanced performance and control.