Crafted from high-strength, heat treated steel, this mil-spec hammer is engineered for durability and consistent performance, even under repeated use. Its precision machining to exact mil-spec dimensions ensures a perfect fit and reliable operation within any mil-spec AR-15 lower receiver. Designed for ease of use, this hammer serves as a drop-in replacement, seamlessly integrating with standard AR-15 lower parts kits for straightforward installation. Whether you're replacing a worn-out component or building a new rifle from scratch, this OEM hammer promises exceptional durability and functionality, making it an indispensable part of your firearm assembly. The mil-spec hammer from Sons of Liberty Gun Works is an original equipment manufacturer (OEM) component specifically engineered for mil-spec AR-15 rifles Designed for durability and reliable performance, this hammer ensures a consistent and precise trigger reset, facilitating smooth and dependable firearm operation