The Spikes Tactical Delta Ring assembly is crafted to meticulous Mil-Spec standards providing a ready solution for completing your new upper. Constructed from durable chromoly steel the barrel nut undergoes precise heat treatment and features a phosphate coating to ensure maximum longevity. Consistent with Mil-Spec requirements both the weld spring and snap ring are similarly finished with a phosphate coating. The delta ring itself is fabricated from Mil-Spec aluminum and boasts a sleek black anodized surface. With all components pre-installed in the package you can seamlessly mount your barrel and advance your build toward completion.Features include:- Black finish- Delta ring assembly comprised of barrel nut weld spring snap ring and delta ring- Compatible with AR rifles