Product OverviewThe American Built Arms ABA556B Nickel Boron Bolt Assembly is engineered for high performance in 5.56mm AR-15 rifles. This bolt assembly requires virtually no lubrication during operation, making it an efficient choice for shooters who want reliability without the hassle of frequent maintenance. The nickel boron finish not only enhances durability but also provides a smooth surface that aids in reliable cycling and extraction.Intended UseThis bolt assembly is ideal for AR-15 builds and is suitable for competitive shooting as well as recreational use.Who It Is ForThis product is designed for AR-15 enthusiasts and builders looking for a dependable bolt assembly. Those who prefer traditional steel components may consider alternatives without the nickel boron coating.Key FeaturesNickel Boron Coating: Reduces friction and requires minimal lubrication, enhancing performance.Manganese Phosphate Coated Extractor: Provides superior extraction reliability during firing.Durable Steel Construction: Ensures longevity and resilience in harsh conditions.Dimensions: 5.5 inches in length, designed to fit standard AR-15 uppers.Real-World UsePicture yourself at a competitive shooting event, where every second counts. With the American Built Arms ABA556B Nickel Boron Bolt Assembly, you experience smooth cycling and dependable extraction, allowing you to focus on your aim without worrying about reliability.