The CMC Triggers 81625 is a high-quality AR15/AR10 Gas Tube, coated with Nitride for added durability. This component, meticulously crafted from 304 Stainless Steel, guarantees a considerable increase in corrosion resistance, wear resistance, and fatigue strength. With the Nitride coating, the gas tube also enhances your rifle's cosmetic appeal apart from its increased functionality. Ensuring consistent gas flow, this component guarantees the proper cycling of your rifle. Embodying the true spirit of American quality and craftsmanship, this product is made in the USA.