The Midwest Industries AR-15 Bolt Carrier Group in Black Nitride is a high-quality component designed for the AR-15 platform. Engineered for optimal performance this bolt carrier group is crafted to accommodate the 5.56 mm NATO cartridge ensuring reliable cycling and precision. The Black Nitride finish not only provides a sleek corrosion-resistant surface but also enhances durability and reduces friction for smoother operation. Ideal for both enthusiasts and professionals this bolt carrier group embodies the craftsmanship and innovation synonymous with Midwest Industries making it a trusted choice for enhancing your AR-15.