Product OverviewThe Aero Precision APRH100504C Buffer Spring is a Mil-Spec component specifically designed for AR-15 carbines equipped with a collapsible buttstock. This buffer spring is essential for ensuring reliable cycling and performance in your firearm. Whether you are assembling a new build or replacing a worn-out part, this buffer spring provides the durability and reliability you need.Intended UseIt is intended for use in AR-15 builds and as a replacement part for maintaining firearm functionality.Who It Is ForThis product is ideal for firearm enthusiasts and builders looking for quality components for their AR-15s. If you're upgrading or maintaining your carbine, this buffer spring is a reliable choice.Key FeaturesMil-Spec Design: Ensures compatibility and performance with AR-15 carbines.Perfect Replacement: Ideal for replacing worn-out buffer springs to maintain reliable cycling.USA-Made: Manufactured in the USA for quality assurance.Versatile Use: Suitable for both new builds and existing AR-15 carbines.Real-World UseWhen building your AR-15 from the ground up, the Aero Precision APRH100504C Buffer Spring can be installed alongside other essential components, ensuring smooth operation during firing. It is also perfect for replacing an old or ineffective buffer spring, restoring your carbine's reliability on the range or in the field.