Product DescriptionThe Aero Precision AR-15 Standard Lower Parts Kit is designed to help you build a custom AR-15 lower receiver from the ground up with dependable, Mil-Spec fit and function. Built around Mil-Spec dimensions and quality coating, this lower parts kit is intended to promote proper component interface and reliable installation for AR-15 platform builds. The kit includes essential lower receiver components such as takedown and pivot parts, fire control parts, bolt catch components, safety selector parts, buffer retainer parts, trigger guard hardware, magazine catch components, and an A2 pistol grip with mounting hardware.Product Highlights Complete standard lower parts kit for AR-15 lower receiver builds and replacements Mil-Spec dimensions and coating help ensure proper fit, compatibility, and dependable performance Includes key fire control and lower receiver components such as hammer, trigger, and disconnector Supplied with takedown, pivot, bolt catch, safety selector, and magazine catch components Comes with an A2 pistol grip, screw, and lock washer for a ready-to-install setup Specs Product Type: Lower Parts Kit Platform: AR-15 Finish: Black Hardcoat Anodized Specification Standard: Mil-Spec Included Components: Takedown/pivot spring, takedown/pivot detent, trigger/hammer pin, takedown pin, pivot pin, bolt catch, bolt catch spring, buffer, roll pin, safety selector, safety selector spring, safety selector detent, buffer retainer, buffer retainer spring, trigger guard, trigger guard roll pin, A2 pistol grip, screw, lock washer, hammer spring, disconnector spring, magazine catch body, magazine catch spring, magazine catch button, hammer, trigger, disconnector Product Weight: 7.5 oz Country of Manufacture: USA UPC: 815421020823 Manufacturer Part Number: APRH100029 Brand: Aero Precision Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&';s manufacturer.