Upgrade your AR-15 platform with our comprehensive bolt assembly kit, meticulously designed for seamless compatibility with any mil-spec bolt carrier and its sub-components. This all-inclusive kit ensures you have everything you need for a reliable and efficient assembly. Inside the package, you'll find a precision engineered bolt assembly, a durable cam pin, a robust firing pin and a secure firing pin retainer pin. Each component is crafted to meet the highest standards of quality and performance, ensuring optimal functionality and longevity. To assist you in the installation process, an easy-to-follow instruction sheet is included, guiding you step-by-step for a hassle-free setup. Elevate your firearm's performance with this essential kit, designed for enthusiasts and professionals alike. Constructed from SAE 9310 steel for enhanced durability and prolonged service life DLC coating offers exceptional surface hardness and lubricity while preserving a ductile core Surface finish with minimal friction Fully compliant with military specification sub-components The enlarged diameter of the cam pin hole significantly reduces the occurrence of common bolt failures Enhanced lug geometry to minimize wear and facilitate smoother locking and unlocking The enhanced ejector minimizes head case extrusions and decreases brass smearing The enhanced extractor optimizes the extraction function and eliminates common ejection failures The enhanced gas ring minimizes internal friction and carrier wear while sustaining an almost indefinite gas seal