Ruger AR-15 lower receiver for custom builds and rifle assembly. Precision-machined, fully compatible with standard AR-15 components and upgrades.
The Ruger AR lower receiver is the foundation of any quality AR-15 rifle build. As the regulated component of an AR-15 platform rifle, this precision-machined lower receiver is manufactured to exacting standards and ready for integration with your choice of upper receiver and components.
This is a lower receiver only—you'll need to source an upper receiver assembly, bolt carrier group, and other components to complete your rifle build. The lower receiver is the regulated firearm component and requires proper licensing and compliance with all applicable federal, state, and local laws.
Whether you're building your first AR-15 or adding to your collection, the Ruger AR lower receiver provides a solid, reliable foundation for a custom rifle tailored to your specific needs and preferences.