Brownells BRN AR-15/M16 5.56MM BOLT ASSEMBLY, MPI, NITRIDE AZT-M4-556-ST-001

Brownells BRN AR-15/M16 5.56mm Bolt Assembly The Brownells BRN AR-15/M16 5.56mm Bolt Assembly is a precision-machined and tested bolt designed for reliable function in AR-15 and M16 platforms. This complete bolt assembly is Magnetic Particle Inspected (MPI) and finished with a durable nitride coating for enhanced performance and longevity. High-Quality 5.56mm Bolt Assembly This bolt assembly includes the bolt, extractor, ejector, extractor pin, and ejector pin. It is manufactured to exacting specifications to ensure proper headspace, reliable extraction, and consistent cycling. The nitride finish provides excellent corrosion resistance and reduced friction, making it a popular choice for both duty and recreational use. Key Features of the Brownells BRN 5.56mm Bolt Assembly Complete bolt assembly for AR-15 and M16 platforms Magnetic Particle Inspected (MPI) for quality assurance Nitride finish for superior corrosion resistance and durability Designed for 5.56mm NATO / .223 Remington Precision machined for reliable extraction and ejection Model: AZT-M4-556-ST-001 Ideal Applications This bolt assembly is ideal for building custom AR-15 rifles, replacing worn bolts, or upgrading existing firearms. It is suitable for competition shooting, home defense, duty use, and general-purpose builds. The nitride finish makes it especially well-suited for shooters who want a low-maintenance bolt with excellent wear characteristics. Why Choose Brownells AR-15 Components? When searching for an AR-15 Bolt Assembly, 5.56 Bolt, or Nitride Bolt, this product stands out for its quality construction and testing standards. Brownells is a trusted name in the firearms industry, known for offering reliable AR-15 components that meet the needs of serious shooters and builders. Upgrade your AR-15 with the Brownells BRN 5.56mm Nitride Bolt Assembly. The End