AR Lower Parts & AR-15 Lower Parts Kits

Our AR lower parts category features quality components and complete AR-15 lower parts kits (LPKs) designed for compatibility with standard AR-platform lower receivers. We offer trusted brands known for consistent machining, durable materials, and dependable performance.

The lower receiver assembly contains critical fire control and control interface components. Our inventory includes:
• Complete AR-15 lower parts kits (LPK)
• Trigger assemblies
• Hammers and disconnectors
• Safety selector switches
• Magazine release components
• Bolt catch assemblies
• Takedown and pivot pins
• Springs and detents

We carry both mil-spec components and enhanced upgrade options for customers seeking refined trigger feel or upgraded materials.

Quality & Compatibility

All AR lower receiver parts are sourced from reputable manufacturers with strong quality control standards. Product listings include compatibility information to help ensure proper fitment with standard AR-15 platform lower receivers.

When selecting lower parts, consider:
• Mil-spec compatibility
• Trigger style and pull characteristics
• Material construction
• Brand preference
• Intended rifle configuration

Responsible Ownership & Compliance

Lower parts are designed for lawful use with compatible receivers in accordance with federal, state, and local laws. Customers are responsible for understanding all applicable regulations before purchasing components.

Whether you’re maintaining an existing rifle platform or sourcing a complete AR-15 lower parts kit, our collection provides reliable options from trusted industry brands.

Browse our AR lower parts and LPKs to find the components you need for your AR platform.